various runtime fixes - plasman tounges no longer have a maxhealth value of "alien", simplemobs no longer runtime when shot, removing filters from something that lacks filters now works

code/modules/projectiles/projectile.dm

@@ -164,7 +164,7 @@
 			if(starting)
 				splatter_dir = get_dir(starting, target_loca)
 			var/obj/item/bodypart/B = L.get_bodypart(def_zone)
-			if(B.status == BODYPART_ROBOTIC) // So if you hit a robotic, it sparks instead of bloodspatters
+			if(istype(B) && B.status == BODYPART_ROBOTIC) // So if you hit a robotic, it sparks instead of bloodspatters
 				do_sparks(2, FALSE, target.loc)
 				if(prob(25))
 					new /obj/effect/decal/cleanable/oil(target_loca)

code/modules/surgery/organs/tongue.dm

@@ -233,7 +233,6 @@
 	name = "plasma bone \"tongue\""
 	desc = "Like animated skeletons, Plasmamen vibrate their teeth in order to produce speech."
 	icon_state = "tongueplasma"
-	maxHealth = "alien"
 	modifies_speech = FALSE
 
 /obj/item/organ/tongue/robot