diff --git a/code/game/machinery/dance_machine.dm b/code/game/machinery/dance_machine.dm
index 91306585b8..c6b4f2fcf5 100644
--- a/code/game/machinery/dance_machine.dm
+++ b/code/game/machinery/dance_machine.dm
@@ -406,12 +406,11 @@
 	lying_prev = 0
 
 /obj/machinery/jukebox/proc/dance_over()
-	SSjukeboxes.removejukebox(SSjukeboxes.findjukeboxindex(src))
+	var/position = SSjukeboxes.findjukeboxindex(src)
+	if(!position)
+		return
+	SSjukeboxes.removejukebox(position)
 	STOP_PROCESSING(SSobj, src)
-	for(var/mob/living/L in rangers)
-		if(!L || !L.client)
-			continue
-		L.stop_sound_channel(CHANNEL_JUKEBOX)
 	rangers = list()
 
 /obj/machinery/jukebox/disco/dance_over()
diff --git a/code/modules/mob/living/carbon/human/species_types/plasmamen.dm b/code/modules/mob/living/carbon/human/species_types/plasmamen.dm
index 5a7710fe29..4a7399f287 100644
--- a/code/modules/mob/living/carbon/human/species_types/plasmamen.dm
+++ b/code/modules/mob/living/carbon/human/species_types/plasmamen.dm
@@ -54,7 +54,7 @@
 	..()
 
 /datum/species/plasmaman/before_equip_job(datum/job/J, mob/living/carbon/human/H, visualsOnly = FALSE)
-	var/current_job = J.title
+	var/current_job = J?.title
 	var/datum/outfit/plasmaman/O = new /datum/outfit/plasmaman
 	switch(current_job)
 		if("Chaplain")
diff --git a/code/modules/reagents/chemistry/machinery/chem_master.dm b/code/modules/reagents/chemistry/machinery/chem_master.dm
index 9c877fc053..b779ad5d44 100644
--- a/code/modules/reagents/chemistry/machinery/chem_master.dm
+++ b/code/modules/reagents/chemistry/machinery/chem_master.dm
@@ -148,8 +148,8 @@
 
 /obj/machinery/chem_master/on_deconstruction()
 	var/atom/A = drop_location()
-	beaker.forceMove(A)
-	bottle.forceMove(A)
+	beaker?.forceMove(A)
+	bottle?.forceMove(A)
 	return ..()
 
 /obj/machinery/chem_master/ui_interact(mob/user, ui_key = "main", datum/tgui/ui = null, force_open = FALSE, \
diff --git a/code/modules/reagents/reagent_containers/glass.dm b/code/modules/reagents/reagent_containers/glass.dm
index 624a5e62cb..3d497578e9 100644
--- a/code/modules/reagents/reagent_containers/glass.dm
+++ b/code/modules/reagents/reagent_containers/glass.dm
@@ -22,13 +22,9 @@
 
 	if(istype(M))
 		if(user.a_intent == INTENT_HARM)
-			var/R
 			M.visible_message("<span class='danger'>[user] splashes the contents of [src] onto [M]!</span>", \
 							"<span class='userdanger'>[user] splashes the contents of [src] onto [M]!</span>")
-			if(reagents)
-				for(var/datum/reagent/A in reagents.reagent_list)
-					R += A.type + " ("
-					R += num2text(A.volume) + "),"
+			var/R = reagents?.log_list()
 			if(isturf(target) && reagents.reagent_list.len && thrownby)
 				log_combat(thrownby, target, "splashed (thrown) [english_list(reagents.reagent_list)]")
 				message_admins("[ADMIN_LOOKUPFLW(thrownby)] splashed (thrown) [english_list(reagents.reagent_list)] on [target] at [ADMIN_VERBOSEJMP(target)].")
diff --git a/code/modules/surgery/organs/augments_chest.dm b/code/modules/surgery/organs/augments_chest.dm
index 93ed149a2b..b2beeebe78 100644
--- a/code/modules/surgery/organs/augments_chest.dm
+++ b/code/modules/surgery/organs/augments_chest.dm
@@ -84,6 +84,8 @@
 	to_chat(owner, "<span class='notice'>You feel a faint buzzing as your reviver implant starts patching your wounds...</span>")
 
 /obj/item/organ/cyberimp/chest/reviver/proc/heal()
+	if(!owner)
+		return
 	if(owner.getOxyLoss())
 		owner.adjustOxyLoss(-5)
 		revive_cost += 0.5 SECONDS
diff --git a/code/modules/surgery/organs/liver.dm b/code/modules/surgery/organs/liver.dm
index bc59ee397c..fc70e64a82 100755
--- a/code/modules/surgery/organs/liver.dm
+++ b/code/modules/surgery/organs/liver.dm
@@ -60,9 +60,10 @@
 //Just in case
 /obj/item/organ/liver/Remove(mob/living/carbon/M, special = 0)
 	..()
-	M.remove_movespeed_modifier(LIVER_SWELLING_MOVE_MODIFY)
-	M.ResetBloodVol() //At the moment, this shouldn't allow application twice. You either have this OR a thirsty ferret.
-	sizeMoveMod(1, M)
+	if(!QDELETED(M))
+		M.remove_movespeed_modifier(LIVER_SWELLING_MOVE_MODIFY)
+		M.ResetBloodVol() //At the moment, this shouldn't allow application twice. You either have this OR a thirsty ferret.
+		sizeMoveMod(1, M)
 
 //Applies some of the effects to the patient.
 /obj/item/organ/liver/proc/pharmacokinesis()