initial

code/modules/mob/living/carbon/human/life.dm

@@ -41,7 +41,7 @@
 			handle_chemicals_in_body(delta_time)
 
 			//Organs and blood
-			handle_organs()
+			handle_organs(delta_time)
 			handle_blood()
 
 			//Random events (vomiting etc)

code/modules/mob/living/carbon/human/life/handle_organs.dm

@@ -1,11 +1,11 @@
 // Takes care of organ & limb related updates, such as broken and missing limbs
-/mob/living/carbon/human/proc/handle_organs()
+/mob/living/carbon/human/proc/handle_organs(delta_time)
 
 	last_dam = getBruteLoss() + getFireLoss() + getToxLoss()
 
 	// Processing internal organs is pretty cheap, do that first.
 	for(var/datum/internal_organ/I as anything in internal_organs)
-		I.process()
+		I.process(delta_time)
 
 	for(var/obj/limb/E as anything in limbs_to_process)
 		if(!E)

code/modules/organs/organ_internal.dm

@@ -247,6 +247,20 @@
 	robotic_type = /obj/item/organ/brain/prosthetic
 	vital = 1
 
+/datum/internal_organ/brain/process(delta_time)
+	..()
+
+	if(organ_status >= ORGAN_BRUISED && prob(10 * delta_time))
+		var/dir_choice = pick(list(NORTH, SOUTH, EAST, WEST))
+		owner.Move(get_step(get_turf(owner), dir_choice))
+		owner.drop_held_items()
+		to_chat(owner, SPAN_NOTICE("Your mind wanders and goes blank a moment..."))
+
+	if(organ_status >= ORGAN_BROKEN && prob(10 * delta_time))
+		owner.apply_effect(1, PARALYZE)
+		owner.make_jittery(50)
+		to_chat(owner, SPAN_NOTICE("Your body seizes against your control!"))
+
 /datum/internal_organ/brain/prosthetic //used by synthetic species
 	robotic = ORGAN_ROBOT
 	removed_type = /obj/item/organ/brain/prosthetic