componentization part 1: "The flawed theorical code"

code/modules/events/holiday/xmas.dm

@@ -77,7 +77,7 @@
 	if(LAZYLEN(candidates))
 		var/mob/dead/observer/C = pick(candidates)
 		santa = new /mob/living/carbon/human(pick(GLOB.blobstart))
-		santa.key = C.key
+		C.transfer_key(santa, FALSE)
 
 		santa.equipOutfit(/datum/outfit/santa)
 		santa.update_icons()

code/modules/events/sentience.dm

@@ -48,7 +48,7 @@
 
 		spawned_animals++
 
-		SA.key = SG.key
+		SG.transfer_key(SA, FALSE)
 
 		SA.grant_all_languages(TRUE)
 

code/modules/events/wizard/imposter.dm

@@ -23,7 +23,7 @@
 		I.name = I.dna.real_name
 		I.updateappearance(mutcolor_update=1)
 		I.domutcheck()
-		I.key = C.key
+		C.transfer_key(I, FALSE)
 		var/datum/antagonist/wizard/master = M.has_antag_datum(/datum/antagonist/wizard)
 		if(!master.wiz_team)
 			master.create_wiz_team()