Fixes a runtime and mindbreaker

code/modules/flufftext/Hallucination.dm

@@ -138,7 +138,7 @@ GLOBAL_LIST_INIT(hallucination_list, list(
 	Show()
 
 /obj/effect/hallucination/simple/Destroy()
-	if(target.client)
+	if(target && target.client)
 		target.client.images.Remove(current_image)
 	active = FALSE
 	return ..()

code/modules/reagents/chemistry/reagents/toxin_reagents.dm

@@ -200,7 +200,8 @@
 	pH = 11
 
 /datum/reagent/toxin/mindbreaker/on_mob_life(mob/living/carbon/M)
-	M.hallucination += 5
+	if(!M.has_quirk(/datum/quirk/insanity))
+		M.hallucination += 5
 	return ..()
 
 /datum/reagent/toxin/plantbgone