diff --git a/code/defines/obj/weapon.dm b/code/defines/obj/weapon.dm
index 4ab016f5b13..86e0bd32652 100644
--- a/code/defines/obj/weapon.dm
+++ b/code/defines/obj/weapon.dm
@@ -246,10 +246,10 @@
 						if(O == H)
 							continue
 						O.show_message("\red <B>[H] steps on \the [src].</B>", 1)
-		if(isanimal(AM) && !istype(AM, /mob/living/simple_animal/parrot))
+		if(isanimal(AM) && !istype(AM, /mob/living/simple_animal/parrot) && !istype(AM, /mob/living/simple_animal/construct) && !istype(AM, /mob/living/simple_animal/shade) && !istype(AM, /mob/living/simple_animal/hostile/viscerator))
 			armed = 0
 			var/mob/living/simple_animal/SA = AM
-			SA.health = 0
+			SA.health -= 20
 	..()