diff --git a/code/modules/organs/organ.dm b/code/modules/organs/organ.dm
index f850f8bd226..e2a9c2ea924 100644
--- a/code/modules/organs/organ.dm
+++ b/code/modules/organs/organ.dm
@@ -18,7 +18,6 @@ var/list/organ_cache = list()
 	var/robotic = 0 //For being a robot
 	var/rejecting   // Is this organ already being rejected?
 
-	var/list/transplant_data
 	var/list/datum/autopsy_data/autopsy_data = list()
 	var/list/trace_chemicals = list() // traces of chemicals in the organ,
 									  // links chemical IDs to number of ticks for which they'll stay in the blood
@@ -76,14 +75,14 @@ var/list/organ_cache = list()
 		if(B && prob(40))
 			reagents.remove_reagent("blood",0.1)
 			blood_splatter(src,B,1)
+		if(prob(5)) //How about we not have organs become completely useless less than a minute after removal?
+			damage += 1
 
-		damage += rand(1,3)
 		if(damage >= max_damage)
 			die()
 	else if(owner.bodytemperature >= 170)	//cryo stops germs from moving and doing their bad stuffs
 		//** Handle antibiotics and curing infections
 		handle_antibiotics()
-		handle_rejection()
 		handle_germ_effects()
 
 /obj/item/organ/proc/handle_germ_effects()
@@ -111,28 +110,6 @@ var/list/organ_cache = list()
 		if (prob(3))	//about once every 30 seconds
 			take_damage(1,silent=prob(30))
 
-/obj/item/organ/proc/handle_rejection()
-	// Process unsuitable transplants. TODO: consider some kind of
-	// immunosuppressant that changes transplant data to make it match.
-	if(transplant_data)
-		if(!rejecting && prob(20) && owner.dna && blood_incompatible(transplant_data["blood_type"],owner.dna.b_type,owner.species,transplant_data["species"]))
-			rejecting = 1
-		else
-			rejecting++ //Rejection severity increases over time.
-			if(rejecting % 10 == 0) //Only fire every ten rejection ticks.
-				switch(rejecting)
-					if(1 to 50)
-						take_damage(1)
-					if(51 to 200)
-						owner.reagents.add_reagent("toxin", 1)
-						take_damage(1)
-					if(201 to 500)
-						take_damage(rand(2,3))
-						owner.reagents.add_reagent("toxin", 2)
-					if(501 to INFINITY)
-						take_damage(4)
-						owner.reagents.add_reagent("toxin", rand(3,5))
-
 /obj/item/organ/proc/receive_chem(chemical as obj)
 	return 0
 
@@ -262,17 +239,6 @@ var/list/organ_cache = list()
 
 	if(!istype(target)) return
 
-	var/datum/reagent/blood/transplant_blood = locate(/datum/reagent/blood) in reagents.reagent_list
-	transplant_data = list()
-	if(!transplant_blood)
-		transplant_data["species"] =    target.species.name
-		transplant_data["blood_type"] = target.dna.b_type
-		transplant_data["blood_DNA"] =  target.dna.unique_enzymes
-	else
-		transplant_data["species"] =    transplant_blood.data["species"]
-		transplant_data["blood_type"] = transplant_blood.data["blood_type"]
-		transplant_data["blood_DNA"] =  transplant_blood.data["blood_DNA"]
-
 	owner = target
 	processing_objects -= src
 	target.internal_organs |= src
diff --git a/code/modules/organs/organ_stump.dm b/code/modules/organs/organ_stump.dm
index 2ec52b3e48a..e1a0611a017 100644
--- a/code/modules/organs/organ_stump.dm
+++ b/code/modules/organs/organ_stump.dm
@@ -1,7 +1,7 @@
 /obj/item/organ/external/stump
 	name = "limb stump"
 	icon_name = ""
-	cannot_amputate = 1
+	cannot_amputate = 0 //You need to remove stumps to attach new limbs, but you can't remove stumps... What the fuck?
 
 /obj/item/organ/external/stump/New(var/mob/living/carbon/holder, var/internal, var/obj/item/organ/external/limb)
 	if(istype(limb))
diff --git a/code/modules/surgery/implant.dm b/code/modules/surgery/implant.dm
index c31447e0142..8cbe1998c64 100644
--- a/code/modules/surgery/implant.dm
+++ b/code/modules/surgery/implant.dm
@@ -7,8 +7,10 @@
 /datum/surgery_step/cavity
 	priority = 1
 	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		if(!hasorgans(target))
+			return 0
 		var/obj/item/organ/external/affected = target.get_organ(target_zone)
-		return affected.open == 2 && !(affected.status & ORGAN_BLEEDING) && (target_zone != "chest" || target.op_stage.ribcage == 2)
+		return affected && affected.open == (affected.encased ? 3 : 2) && !(affected.status & ORGAN_BLEEDING)
 
 	proc/get_max_wclass(obj/item/organ/external/affected)
 		switch (affected.name)