diff --git a/code/datums/components/material_container.dm b/code/datums/components/material_container.dm
index f4b8e84204f..2ea582aab62 100644
--- a/code/datums/components/material_container.dm
+++ b/code/datums/components/material_container.dm
@@ -49,6 +49,10 @@
 			var/mat_path = possible_mats[id]
 			materials[id] = new mat_path()
 
+/datum/component/material_container/Destroy(force, silent)
+	QDEL_LIST_ASSOC_VAL(materials)
+	return ..()
+
 /datum/component/material_container/proc/OnExamine(datum/source, mob/user, list/examine_list)
 	if(show_on_examine)
 		for(var/I in materials)
diff --git a/code/game/machinery/cloning.dm b/code/game/machinery/cloning.dm
index e8d5cfcf437..79785006452 100644
--- a/code/game/machinery/cloning.dm
+++ b/code/game/machinery/cloning.dm
@@ -100,6 +100,7 @@ GLOBAL_LIST_INIT(cloner_biomass_items, list(\
 /obj/machinery/clonepod/Destroy()
 	if(connected)
 		connected.pods -= src
+		connected = null
 	if(clonemind)
 		UnregisterSignal(clonemind.current, COMSIG_LIVING_REVIVE)
 		UnregisterSignal(clonemind, COMSIG_MIND_TRANSER_TO)
diff --git a/code/game/machinery/computer/message.dm b/code/game/machinery/computer/message.dm
index a7345522b25..10e36785369 100644
--- a/code/game/machinery/computer/message.dm
+++ b/code/game/machinery/computer/message.dm
@@ -34,6 +34,24 @@
 
 	light_color = LIGHT_COLOR_DARKGREEN
 
+/obj/machinery/computer/message_monitor/Initialize()
+	..()
+	return INITIALIZE_HINT_LATELOAD // Give the message server time to initialize
+
+/obj/machinery/computer/message_monitor/LateInitialize()
+	//If the monitor isn't linked to a server, and there's a server available, default it to the first one in the list.
+	if(!linkedServer && length(GLOB.message_servers))
+		linkedServer = GLOB.message_servers[1]
+		RegisterSignal(linkedServer, COMSIG_PARENT_QDELETING, .proc/unlink_server)
+
+/obj/machinery/computer/message_monitor/proc/unlink_server()
+	SIGNAL_HANDLER
+	linkedServer = null
+
+/obj/machinery/computer/message_monitor/Destroy()
+	customrecepient = null
+	linkedServer = null
+	return ..()
 
 /obj/machinery/computer/message_monitor/screwdriver_act(mob/user, obj/item/I)
 	if(emag) //Stops people from just unscrewing the monitor and putting it back to get the console working again.
@@ -71,14 +89,6 @@
 
 	..()
 
-/obj/machinery/computer/message_monitor/Initialize()
-	..()
-	//Is the server isn't linked to a server, and there's a server available, default it to the first one in the list.
-	if(!linkedServer)
-		if(GLOB.message_servers && GLOB.message_servers.len > 0)
-			linkedServer = GLOB.message_servers[1]
-	return
-
 /obj/machinery/computer/message_monitor/attack_hand(mob/user as mob)
 	if(..())
 		return
diff --git a/code/modules/arcade/mob_hunt/mob_avatar.dm b/code/modules/arcade/mob_hunt/mob_avatar.dm
index 7f7f53d3199..19f792af763 100644
--- a/code/modules/arcade/mob_hunt/mob_avatar.dm
+++ b/code/modules/arcade/mob_hunt/mob_avatar.dm
@@ -1,4 +1,3 @@
-
 /obj/effect/nanomob
 	name = "Nano-Mob Avatar"					//will be overridden by the mob datum name value when created
 	desc = "A wild Nano-Mob appeared! Hit it with your PDA with the game open to attempt to capture it!"
@@ -12,17 +11,29 @@
 	var/list/clients_encountered = list()		//tracks who has already interacted with us, so they can't attempt a second capture
 	var/image/avatar
 
-/obj/effect/nanomob/New(loc, datum/mob_hunt/new_info)
-	..()
+/obj/effect/nanomob/Initialize(mapload, datum/mob_hunt/new_info)
+	. = ..()
 	if(!new_info)
-		qdel(src)
-		return
+		return INITIALIZE_HINT_QDEL
 	mob_info = new_info
+	RegisterSignal(mob_info, COMSIG_PARENT_QDELETING, .proc/delete_wrapper)
 	update_self()
 	forceMove(mob_info.spawn_point)
 	if(!mob_info.is_trap)
 		addtimer(CALLBACK(src, .proc/despawn), mob_info.lifetime)
 
+/obj/effect/nanomob/Destroy()
+	SSmob_hunt.trap_spawns -= src
+	SSmob_hunt.normal_spawns -= src
+	mob_info = null // Can't delete this since multiple players can get the exact same /datum/mob_hunt. (This should be refactored)
+	clients_encountered.Cut()
+	QDEL_NULL(avatar)
+	return ..()
+
+/obj/effect/nanomob/proc/delete_wrapper()
+	SIGNAL_HANDLER
+	qdel(src)
+
 /obj/effect/nanomob/proc/update_self()
 	if(!mob_info)
 		return
@@ -132,12 +143,6 @@
 	icon_state = "placeholder"
 	var/obj/machinery/computer/mob_battle_terminal/my_terminal
 
-/obj/effect/nanomob/battle/New(loc, datum/mob_hunt/new_info)
-	. = ..()
-	if(new_info)
-		mob_info = new_info
-		update_self()
-
 /obj/effect/nanomob/battle/update_self()
 	if(!mob_info)
 		name = "Nano-Mob Battle Avatar"
diff --git a/code/modules/mob/living/silicon/ai/ai.dm b/code/modules/mob/living/silicon/ai/ai.dm
index 6c646d2509e..5d20cb66209 100644
--- a/code/modules/mob/living/silicon/ai/ai.dm
+++ b/code/modules/mob/living/silicon/ai/ai.dm
@@ -212,6 +212,20 @@ GLOBAL_LIST_INIT(ai_verbs_default, list(
 	GLOB.shuttle_caller_list += src
 	..()
 
+/mob/living/silicon/ai/Destroy()
+	GLOB.ai_list -= src
+	GLOB.shuttle_caller_list -= src
+	SSshuttle.autoEvac()
+	if(malfhacking)
+		deltimer(malfhacking)
+		malfhacking = null
+	QDEL_NULL(eyeobj) // No AI, no Eye
+	QDEL_NULL(aiPDA)
+	QDEL_NULL(aiMulti)
+	QDEL_NULL(aiRadio)
+	QDEL_NULL(builtInCamera)
+	return ..()
+
 /mob/living/silicon/ai/proc/on_mob_init()
 	to_chat(src, "<B>You are playing the station's AI. The AI cannot move, but can interact with many objects while viewing them (through cameras).</B>")
 	to_chat(src, "<B>To look at other parts of the station, click on yourself to get a camera menu.</B>")
@@ -314,17 +328,6 @@ GLOBAL_LIST_INIT(ai_verbs_default, list(
 
 	return TRUE
 
-/mob/living/silicon/ai/Destroy()
-	GLOB.ai_list -= src
-	GLOB.shuttle_caller_list -= src
-	SSshuttle.autoEvac()
-	QDEL_NULL(eyeobj) // No AI, no Eye
-	if(malfhacking)
-		deltimer(malfhacking)
-		malfhacking = null
-	malfhack = null
-	return ..()
-
 
 /*
 	The AI Power supply is a dummy object used for powering the AI since only machinery should be using power.
diff --git a/code/modules/mob/living/simple_animal/hostile/bat.dm b/code/modules/mob/living/simple_animal/hostile/bat.dm
index 1cc904f1017..9e5ae1e2ec1 100644
--- a/code/modules/mob/living/simple_animal/hostile/bat.dm
+++ b/code/modules/mob/living/simple_animal/hostile/bat.dm
@@ -33,27 +33,16 @@
 //	break_stuff_probability = 2
 
 	faction = list("scarybat")
-	var/mob/living/owner
 	gold_core_spawnable = HOSTILE_SPAWN
 
-/mob/living/simple_animal/hostile/scarybat/New(loc, mob/living/L as mob)
-	..()
+/mob/living/simple_animal/hostile/scarybat/Initialize(mapload, mob/living/L)
+	. = ..()
 	if(istype(L))
-		owner = L
+		faction += "\ref[L]"
 
 /mob/living/simple_animal/hostile/scarybat/Process_Spacemove(check_drift = 0)
 	return ..()	//No drifting in space for space carp!	//original comments do not steal
 
-/mob/living/simple_animal/hostile/scarybat/Found(atom/A)//This is here as a potential override to pick a specific target if available
-	if(istype(A) && A == owner)
-		return 0
-	return ..()
-
-/mob/living/simple_animal/hostile/scarybat/CanAttack(atom/the_target)//This is here as a potential override to pick a specific target if available
-	if(istype(the_target) && the_target == owner)
-		return 0
-	return ..()
-
 /mob/living/simple_animal/hostile/scarybat/AttackingTarget()
 	. =..()
 	var/mob/living/L = .
diff --git a/code/modules/paperwork/faxmachine.dm b/code/modules/paperwork/faxmachine.dm
index 76a5dd4dc03..a3a4d0c58c4 100644
--- a/code/modules/paperwork/faxmachine.dm
+++ b/code/modules/paperwork/faxmachine.dm
@@ -40,11 +40,15 @@ GLOBAL_LIST_EMPTY(fax_blacklist)
 	/// Target department to send outgoing faxes to
 	var/destination
 
-/obj/machinery/photocopier/faxmachine/New()
-	..()
+/obj/machinery/photocopier/faxmachine/Initialize(mapload)
+	. = ..()
 	GLOB.allfaxes += src
 	update_network()
 
+/obj/machinery/photocopier/faxmachine/Destroy()
+	GLOB.allfaxes -= src
+	return ..()
+
 /obj/machinery/photocopier/faxmachine/proc/update_network()
 	if(department != "Unknown")
 		if(!(("[department]" in GLOB.alldepartments) || ("[department]" in GLOB.hidden_departments) || ("[department]" in GLOB.admin_departments) || ("[department]" in GLOB.hidden_admin_departments)))
diff --git a/code/modules/pda/mob_hunt_game_app.dm b/code/modules/pda/mob_hunt_game_app.dm
index 5db744c37ef..fe4ef7962f3 100644
--- a/code/modules/pda/mob_hunt_game_app.dm
+++ b/code/modules/pda/mob_hunt_game_app.dm
@@ -28,6 +28,11 @@
 	disconnect("Program Terminated")
 	STOP_PROCESSING(SSobj, pda)
 
+/datum/data/pda/app/mob_hunter_game/Destroy()
+	STOP_PROCESSING(SSobj, pda)
+	SSmob_hunt.connected_clients -= src
+	return ..()
+
 /datum/data/pda/app/mob_hunter_game/proc/scan_nearby()
 	if(!SSmob_hunt || !connected)
 		return
@@ -74,13 +79,14 @@
 		return
 	scan_nearby()
 
-/datum/data/pda/app/mob_hunter_game/proc/register_capture(datum/mob_hunt/captured, wild = 0)
+/datum/data/pda/app/mob_hunter_game/proc/register_capture(datum/mob_hunt/captured, wild = FALSE)
 	if(!captured)
-		return 0
-	my_collection.Add(captured)
+		return FALSE
+	my_collection += captured
+	RegisterSignal(captured, COMSIG_PARENT_QDELETING, .proc/remove_mob)
 	if(wild)
 		wild_captures++
-	return 1
+	return TRUE
 
 /datum/data/pda/app/mob_hunter_game/update_ui(mob/user, list/data)
 	if(!SSmob_hunt || !(src in SSmob_hunt.connected_clients))
@@ -138,12 +144,27 @@
 	card.forceMove(get_turf(pda))
 	remove_mob()
 
-/datum/data/pda/app/mob_hunter_game/proc/remove_mob()
-	if(!my_collection.len)
+/**
+  * Removes a Nanomob from the [my_collection] list.
+  *
+  * The Nanomob that is currently selected in the app ([current_index]) will be removed from the list unless a `mob_override` argument is given, in which case that will be removed instead.
+  *
+  * Arguments:
+  * * mob_override - A specific Nanomob to remove from the list. (Optional)
+  */
+/datum/data/pda/app/mob_hunter_game/proc/remove_mob(datum/mob_hunt/mob_override = null)
+	SIGNAL_HANDLER
+	if(!length(my_collection))
 		return
-	my_collection.Remove(my_collection[current_index])
-	if(current_index > my_collection.len)
-		current_index = my_collection.len
+
+	if(mob_override)
+		my_collection -= mob_override
+	else
+		my_collection -= my_collection[current_index]
+
+	var/collection_length = length(my_collection)
+	if(current_index > collection_length)
+		current_index = collection_length
 
 /datum/data/pda/app/mob_hunter_game/proc/set_trap()
 	if(!my_collection.len || !pda || !hacked)
diff --git a/code/modules/research/circuitprinter.dm b/code/modules/research/circuitprinter.dm
index 83b09e5c228..4c7f1e94ca1 100644
--- a/code/modules/research/circuitprinter.dm
+++ b/code/modules/research/circuitprinter.dm
@@ -11,19 +11,17 @@ using metal and glass, it uses glass and reagents (usually sulfuric acis).
 	container_type = OPENCONTAINER
 
 	categories = list(
-								"AI Modules",
-								"Computer Boards",
-								"Engineering Machinery",
-								"Exosuit Modules",
-								"Hydroponics Machinery",
-								"Medical Machinery",
-								"Misc. Machinery",
-								"Research Machinery",
-								"Subspace Telecomms",
-								"Teleportation Machinery"
-								)
-
-	reagents = new()
+		"AI Modules",
+		"Computer Boards",
+		"Engineering Machinery",
+		"Exosuit Modules",
+		"Hydroponics Machinery",
+		"Medical Machinery",
+		"Misc. Machinery",
+		"Research Machinery",
+		"Subspace Telecomms",
+		"Teleportation Machinery"
+	)
 
 /obj/machinery/r_n_d/circuit_imprinter/New()
 	..()
@@ -33,8 +31,8 @@ using metal and glass, it uses glass and reagents (usually sulfuric acis).
 	component_parts += new /obj/item/stock_parts/manipulator(null)
 	component_parts += new /obj/item/reagent_containers/glass/beaker(null)
 	component_parts += new /obj/item/reagent_containers/glass/beaker(null)
+	create_reagents()
 	RefreshParts()
-	reagents.my_atom = src
 
 /obj/machinery/r_n_d/circuit_imprinter/upgraded/New()
 	..()
@@ -45,7 +43,11 @@ using metal and glass, it uses glass and reagents (usually sulfuric acis).
 	component_parts += new /obj/item/reagent_containers/glass/beaker/large(null)
 	component_parts += new /obj/item/reagent_containers/glass/beaker/large(null)
 	RefreshParts()
-	reagents.my_atom = src
+
+/obj/machinery/r_n_d/circuit_imprinter/Destroy()
+	if(linked_console)
+		linked_console.linked_imprinter = null
+	return ..()
 
 /obj/machinery/r_n_d/circuit_imprinter/RefreshParts()
 	reagents.maximum_volume = 0
diff --git a/code/modules/research/destructive_analyzer.dm b/code/modules/research/destructive_analyzer.dm
index 41b7fedd6db..5423f41a236 100644
--- a/code/modules/research/destructive_analyzer.dm
+++ b/code/modules/research/destructive_analyzer.dm
@@ -29,6 +29,11 @@ Note: Must be placed within 3 tiles of the R&D Console
 	component_parts += new /obj/item/stock_parts/micro_laser/ultra(null)
 	RefreshParts()
 
+/obj/machinery/r_n_d/destructive_analyzer/Destroy()
+	if(linked_console)
+		linked_console.linked_destroy = null
+	return ..()
+
 /obj/machinery/r_n_d/destructive_analyzer/RefreshParts()
 	var/T = 0
 	for(var/obj/item/stock_parts/S in component_parts)
diff --git a/code/modules/research/message_server.dm b/code/modules/research/message_server.dm
index 3c2e2cfda0c..4ceacf94301 100644
--- a/code/modules/research/message_server.dm
+++ b/code/modules/research/message_server.dm
@@ -60,14 +60,16 @@ GLOBAL_LIST_EMPTY(message_servers)
 	var/active = TRUE
 	var/decryptkey = "password"
 
-/obj/machinery/message_server/New()
+/obj/machinery/message_server/Initialize(mapload)
+	. = ..()
 	GLOB.message_servers += src
 	decryptkey = GenerateKey()
 	send_pda_message("System Administrator", "system", "This is an automated message. The messaging system is functioning correctly.")
-	..()
 
 /obj/machinery/message_server/Destroy()
 	GLOB.message_servers -= src
+	QDEL_LIST(pda_msgs)
+	QDEL_LIST(rc_msgs)
 	return ..()
 
 /obj/machinery/message_server/process()
diff --git a/code/modules/research/protolathe.dm b/code/modules/research/protolathe.dm
index 263e67dd795..0f69a938734 100644
--- a/code/modules/research/protolathe.dm
+++ b/code/modules/research/protolathe.dm
@@ -14,19 +14,16 @@ Note: Must be placed west/left of and R&D console to function.
 	container_type = OPENCONTAINER
 
 	categories = list(
-								"Bluespace",
-								"Equipment",
-								"Janitorial",
-								"Medical",
-								"Mining",
-								"Miscellaneous",
-								"Power",
-								"Stock Parts",
-								"Weapons"
-								)
-
-	reagents = new()
-
+		"Bluespace",
+		"Equipment",
+		"Janitorial",
+		"Medical",
+		"Mining",
+		"Miscellaneous",
+		"Power",
+		"Stock Parts",
+		"Weapons"
+	)
 
 /obj/machinery/r_n_d/protolathe/New()
 	..()
@@ -38,10 +35,9 @@ Note: Must be placed west/left of and R&D console to function.
 	component_parts += new /obj/item/stock_parts/manipulator(null)
 	component_parts += new /obj/item/reagent_containers/glass/beaker/large(null)
 	component_parts += new /obj/item/reagent_containers/glass/beaker/large(null)
+	create_reagents()
 	RefreshParts()
 
-	reagents.my_atom = src
-
 /obj/machinery/r_n_d/protolathe/upgraded/New()
 	..()
 	component_parts = list()
@@ -54,7 +50,10 @@ Note: Must be placed west/left of and R&D console to function.
 	component_parts += new /obj/item/reagent_containers/glass/beaker/large(null)
 	RefreshParts()
 
-	reagents.my_atom = src
+/obj/machinery/r_n_d/protolathe/Destroy()
+	if(linked_console)
+		linked_console.linked_lathe = null
+	return ..()
 
 /obj/machinery/r_n_d/protolathe/RefreshParts()
 	var/T = 0
diff --git a/code/modules/research/rdconsole.dm b/code/modules/research/rdconsole.dm
index ffa8ac763de..03c916e8b69 100644
--- a/code/modules/research/rdconsole.dm
+++ b/code/modules/research/rdconsole.dm
@@ -176,6 +176,20 @@ won't update every console in existence) but it's more of a hassle to do. Also,
 	SyncRDevices()
 
 /obj/machinery/computer/rdconsole/Destroy()
+	QDEL_NULL(files)
+	QDEL_NULL(t_disk)
+	QDEL_NULL(d_disk)
+	QDEL_LIST(matching_designs)
+	if(linked_destroy)
+		linked_destroy.linked_console = null
+		linked_destroy = null
+	if(linked_lathe)
+		linked_lathe.linked_console = null
+		linked_lathe = null
+	if(linked_imprinter)
+		linked_imprinter.linked_console = null
+		linked_imprinter = null
+
 	if(wait_message_timer)
 		deltimer(wait_message_timer)
 		wait_message_timer = 0
diff --git a/code/modules/research/rdmachines.dm b/code/modules/research/rdmachines.dm
index ac78e892c7e..3fba5e8093a 100644
--- a/code/modules/research/rdmachines.dm
+++ b/code/modules/research/rdmachines.dm
@@ -32,12 +32,17 @@
 	wires["Black"] = 0
 	wires["White"] = 0
 	var/list/w = list("Red","Blue","Green","Yellow","Black","White")
-	src.hack_wire = pick(w)
-	w -= src.hack_wire
-	src.shock_wire = pick(w)
-	w -= src.shock_wire
-	src.disable_wire = pick(w)
-	w -= src.disable_wire
+	hack_wire = pick_n_take(w)
+	shock_wire = pick_n_take(w)
+	disable_wire = pick_n_take(w)
+
+/obj/machinery/r_n_d/Destroy()
+	if(loaded_item)
+		loaded_item.forceMove(get_turf(src))
+		loaded_item = null
+	linked_console = null
+	materials = null
+	return ..()
 
 /obj/machinery/r_n_d/attack_hand(mob/user as mob)
 	if(shocked)
diff --git a/code/modules/vehicle/ambulance.dm b/code/modules/vehicle/ambulance.dm
index 87323fc2042..e5d089c7fe9 100644
--- a/code/modules/vehicle/ambulance.dm
+++ b/code/modules/vehicle/ambulance.dm
@@ -12,6 +12,11 @@
 	AA = new(src)
 	soundloop = new(list(src), FALSE)
 
+/obj/vehicle/ambulance/Destroy()
+	QDEL_NULL(AA)
+	QDEL_NULL(soundloop)
+	return ..()
+
 /datum/action/ambulance_alarm
 	name = "Toggle Sirens"
 	icon_icon = 'icons/obj/vehicles.dmi'