Everything else through the door (#19358)

code/game/dna/dna2_helpers.dm

@@ -128,7 +128,7 @@
 
 // Simpler. Don't specify UI in order for the mob to use its own.
 /mob/proc/UpdateAppearance(list/UI = null)
-	if(istype(src, /mob/living/carbon/human)) // WHY?!
+	if(ishuman(src)) // WHY?!
 		if(UI!=null)
 			dna.UI = UI
 			dna.UpdateUI()

code/game/dna/mutations/powers.dm

@@ -532,7 +532,7 @@
 
 		user.layer = prevLayer
 
-	if(istype(user.loc,/obj/))
+	if(isobj(user.loc))
 		var/obj/container = user.loc
 		to_chat(user, "<span class='warning'>You leap and slam your head against the inside of [container]! Ouch!</span>")
 		user.AdjustParalysis(6 SECONDS)
@@ -699,7 +699,7 @@
 			else
 				to_chat(user, "<span class='notice'><b>Mood</b>: You sense strange thoughts from [M.name].</span>")
 
-		if(istype(M,/mob/living/carbon/human))
+		if(ishuman(M))
 			var/numbers[0]
 			var/mob/living/carbon/human/H = M
 			if(H.mind && H.mind.initial_account)