diff --git a/code/ATMOSPHERICS/components/binary_devices/pump.dm b/code/ATMOSPHERICS/components/binary_devices/pump.dm
index 9044fdb8ff..ed38fd9345 100644
--- a/code/ATMOSPHERICS/components/binary_devices/pump.dm
+++ b/code/ATMOSPHERICS/components/binary_devices/pump.dm
@@ -157,6 +157,7 @@ obj/machinery/atmospherics/binary/pump
 		return
 
 	Topic(href,href_list)
+		if(..()) return
 		if(href_list["power"])
 			on = !on
 		if(href_list["set_press"])
diff --git a/code/ATMOSPHERICS/components/trinary_devices/mixer.dm b/code/ATMOSPHERICS/components/trinary_devices/mixer.dm
index 801b8bf83f..f480b26708 100644
--- a/code/ATMOSPHERICS/components/trinary_devices/mixer.dm
+++ b/code/ATMOSPHERICS/components/trinary_devices/mixer.dm
@@ -137,6 +137,7 @@ obj/machinery/atmospherics/trinary/mixer
 		return
 
 	Topic(href,href_list)
+		if(..()) return
 		if(href_list["power"])
 			on = !on
 		if(href_list["set_press"])
diff --git a/code/datums/helper_datums/tension.dm b/code/datums/helper_datums/tension.dm
index 6744127c50..9b9830738f 100644
--- a/code/datums/helper_datums/tension.dm
+++ b/code/datums/helper_datums/tension.dm
@@ -232,9 +232,18 @@ var/global/datum/tension/tension_master
 
 	Topic(href, href_list)
 
+		if(!usr || !usr.client)
+			return //This shouldnt happen
+
+		if(!usr.client.holder)
+			message_admins("\red [key_name(usr)] tried to use the tensioner without authorization.")
+			log_admin("[key_name(usr)] tried to use the tensioner without authorization.")
+			return
+
 		log_admin("[key_name(usr)] used a tensioner override.  The override was [href]")
 		message_admins("[key_name(usr)] used a tensioner override.  The override was [href]")
 
+
 		if(href_list["addScore"])
 			score += 50000
 
diff --git a/code/datums/mind.dm b/code/datums/mind.dm
index 5baa7730f6..e6fd607112 100644
--- a/code/datums/mind.dm
+++ b/code/datums/mind.dm
@@ -287,6 +287,13 @@ datum/mind
 		usr << browse(out, "window=edit_memory[src]")
 
 	Topic(href, href_list)
+		if(!usr || !usr.client)
+			return
+
+		if(!usr.client.holder)
+			message_admins("\red [key_name(usr)] tried to access [current]'s mind without authorization.")
+			log_admin("[key_name(usr)] tried to access [current]'s mind without authorization.")
+			return
 
 		if (href_list["role_edit"])
 			var/new_role = input("Select new role", "Assigned role", assigned_role) as null|anything in get_all_jobs()
diff --git a/code/game/machinery/atmoalter/canister.dm b/code/game/machinery/atmoalter/canister.dm
index 83ca41f581..1e5097be5e 100644
--- a/code/game/machinery/atmoalter/canister.dm
+++ b/code/game/machinery/atmoalter/canister.dm
@@ -219,9 +219,8 @@ Release Pressure: <A href='?src=\ref[src];pressure_adj=-1000'>-</A> <A href='?sr
 	return
 
 /obj/machinery/portable_atmospherics/canister/Topic(href, href_list)
-	..()
-	if (usr.stat || usr.restrained())
-		return
+	if(..()) return
+
 	if (((get_dist(src, usr) <= 1) && istype(src.loc, /turf)))
 		usr.machine = src
 
diff --git a/code/game/machinery/computer/crew.dm b/code/game/machinery/computer/crew.dm
index 319c5f0a7d..2b6d0c627a 100644
--- a/code/game/machinery/computer/crew.dm
+++ b/code/game/machinery/computer/crew.dm
@@ -44,7 +44,7 @@
 
 
 	Topic(href, href_list)
-		..()
+		if(..()) return
 		if( href_list["close"] )
 			usr << browse(null, "window=crewcomp")
 			usr.machine = null
diff --git a/code/modules/power/singularity/containment_field.dm b/code/modules/power/singularity/containment_field.dm
index 09b9d172b1..15cdedb86d 100644
--- a/code/modules/power/singularity/containment_field.dm
+++ b/code/modules/power/singularity/containment_field.dm
@@ -11,6 +11,7 @@
 	use_power = 0
 	var/obj/machinery/field_generator/FG1 = null
 	var/obj/machinery/field_generator/FG2 = null
+	var/hasShocked = 0 //Used to add a delay between shocks. In some cases this used to crash servers by spawning hundreds of sparks every second.
 
 	New()
 		spawn(1)
@@ -52,6 +53,8 @@
 
 	proc
 		shock(mob/living/user as mob)
+			if(hasShocked)
+				return 0
 			if(!FG1 || !FG2)
 				del(src)
 				return 0
@@ -59,6 +62,8 @@
 				var/datum/effect/effect/system/spark_spread/s = new /datum/effect/effect/system/spark_spread
 				s.set_up(5, 1, user.loc)
 				s.start()
+
+				hasShocked = 1
 				var/shock_damage = min(rand(30,40),rand(30,40))
 				user.burn_skin(shock_damage)
 				user.updatehealth()
@@ -73,11 +78,17 @@
 				user.updatehealth()
 				var/atom/target = get_edge_target_turf(user, get_dir(src, get_step_away(user, src)))
 				user.throw_at(target, 200, 4)
+
+				sleep(20)
+				hasShocked = 0
 				return
+
 			else if(issilicon(user))
 				var/datum/effect/effect/system/spark_spread/s = new /datum/effect/effect/system/spark_spread
 				s.set_up(5, 1, user.loc)
 				s.start()
+
+				hasShocked = 1
 				var/shock_damage = rand(15,30)
 				user.take_overall_damage(0,shock_damage)
 				user.visible_message("\red [user.name] was shocked by the [src.name]!", \
@@ -85,7 +96,11 @@
 					"\red You hear an electrical crack")
 				if(prob(20))
 					user.Stun(2)
+
+				sleep(20)
+				hasShocked = 0
 				return
+
 			return
 
 		set_master(var/master1,var/master2)