Changeling lesser form remake (#7436)

code/modules/ventcrawl/ventcrawl.dm

@@ -11,7 +11,8 @@ var/global/list/can_enter_vent_with = list(
 	/obj/item/holder,
 	/obj/machinery/camera,
 	/mob/living/simple_animal/borer,
-	/mob/living/simple_animal/rat
+	/mob/living/simple_animal/rat,
+	/mob/living/carbon/human
 	)
 
 /mob/living/var/list/icon/pipes_shown = list()

code/modules/ventcrawl/ventcrawl_atmospherics.dm

@@ -41,14 +41,17 @@
 	//If its not small or the device isnt enabled, it wont blend
 	if(!issmall(AM) || !use_power)
 		return FALSE
-	
+
 	//Get the things we need to create the "output"
 	var/mob/living/L = AM
 
+	if(L.mob_size > MOB_TINY)
+		return
+
 	var/blood_color = "#A10808"
 	if(L.blood_color)
 		blood_color = L.blood_color
-	
+
 	if(iscarbon(AM))
 		var/mob/living/carbon/C = AM
 		blood_color = C.species.blood_color
@@ -58,7 +61,7 @@
 	//Blend the Mob
 	to_chat(AM, span("danger","\The [src] blends you to a fine dust."))
 	L.death()
-	qdel(L)	
+	qdel(L)
 
 	//Output what´s left through the connected vents
 	if(N)