Merge pull request #10867 from Ghommie/Ghommie-cit551

Further buff and fix to the clown ops' tearstache grenade.

code/game/objects/items/grenades/chem_grenade.dm

@@ -177,7 +177,7 @@
 
 /obj/item/grenade/chem_grenade/prime()
 	if(stage != READY)
-		return
+		return FALSE
 
 	var/list/datum/reagents/reactants = list()
 	for(var/obj/item/reagent_containers/glass/G in beakers)
@@ -192,7 +192,7 @@
 				O.forceMove(drop_location())
 			beakers = list()
 		stage_change(EMPTY)
-		return
+		return FALSE
 
 	if(nadeassembly)
 		var/mob/M = get_mob_by_ckey(assemblyattacher)
@@ -205,6 +205,7 @@
 	update_mob()
 
 	qdel(src)
+	return TRUE
 
 //Large chem grenades accept slime cores and use the appropriately.
 /obj/item/grenade/chem_grenade/large
@@ -219,7 +220,7 @@
 
 /obj/item/grenade/chem_grenade/large/prime()
 	if(stage != READY)
-		return
+		return FALSE
 
 	for(var/obj/item/slime_extract/S in beakers)
 		if(S.Uses)
@@ -237,7 +238,7 @@
 				else
 					S.forceMove(get_turf(src))
 					no_splash = TRUE
-	..()
+	return ..()
 
 	//I tried to just put it in the allowed_containers list but
 	//if you do that it must have reagents.  If you're going to
@@ -288,7 +289,7 @@
 
 /obj/item/grenade/chem_grenade/adv_release/prime()
 	if(stage != READY)
-		return
+		return FALSE
 
 	var/total_volume = 0
 	for(var/obj/item/reagent_containers/RC in beakers)
@@ -296,7 +297,7 @@
 	if(!total_volume)
 		qdel(src)
 		qdel(nadeassembly)
-		return
+		return FALSE
 	var/fraction = unit_spread/total_volume
 	var/datum/reagents/reactants = new(unit_spread)
 	reactants.my_atom = src
@@ -313,6 +314,7 @@
 	else
 		addtimer(CALLBACK(src, .proc/prime), det_time)
 	log_game("A grenade detonated at [AREACOORD(DT)]")
+	return TRUE
 
 
 

code/game/objects/items/tanks/tanks.dm

@@ -33,6 +33,9 @@
 		H.update_internals_hud_icon(0)
 	else
 		if(!H.getorganslot(ORGAN_SLOT_BREATHING_TUBE))
+			if(HAS_TRAIT(H, TRAIT_NO_INTERNALS))
+				to_chat(H, "<span class='warning'>Due to cumbersome equipment or anatomy, you are currently unable to use internals!</span>")
+				return
 			var/obj/item/clothing/check
 			var/internals = FALSE