more fixes

code/game/machinery/hybrsia_lights.dm

@@ -152,14 +152,14 @@
 			if(!skillcheck(user, SKILL_ENGINEER, SKILL_ENGINEER_ENGI))
 				to_chat(user, SPAN_WARNING("You have no clue how to repair this thing."))
 				return FALSE
-			var/obj/item/tool/weldingtool/WT = O
-			if(WT.remove_fuel(1, user))
+			var/obj/item/tool/weldingtool/welder = O
+			if(welder.remove_fuel(1, user))
 
 				playsound(loc, 'sound/items/weldingtool_weld.ogg', 25)
 				user.visible_message(SPAN_NOTICE("[user] starts welding [src]'s internal damage."),
 				SPAN_NOTICE("You start welding [src]'s internal damage."))
 				if(do_after(user, 200 * user.get_skill_duration_multiplier(SKILL_ENGINEER), INTERRUPT_ALL|BEHAVIOR_IMMOBILE, BUSY_ICON_BUILD))
-					if(buildstate != 1 || is_on || !WT.isOn())
+					if(buildstate != 1 || is_on || !welder.isOn())
 						return FALSE
 					playsound(loc, 'sound/items/Welder2.ogg', 25, 1)
 					buildstate = 2

code/game/objects/structures/hybrisa_props.dm

@@ -1749,7 +1749,7 @@
 	density = TRUE
 	health = 200
 	anchored = TRUE
-	layer = LATTICE_LAYER
+	layer = RIPPLE_LAYER
 
 /obj/structure/prop/hybrisa/misc/buildinggreeblies/greeble1
 	icon_state = "buildingventbig2"

code/modules/mob/living/simple_animal/friendly/rat.dm

@@ -105,11 +105,11 @@
 /mob/living/simple_animal/rat/MouseDrop(atom/over_object)
 	if(!CAN_PICKUP(usr, src))
 		return ..()
-	var/mob/living/carbon/H = over_object
-	if(!istype(H) || !Adjacent(H) || H != usr) return ..()
+	var/mob/living/carbon/human = over_object
+	if(!istype(human) || !Adjacent(human) || human != usr) return ..()
 
-	if(H.a_intent == INTENT_HELP)
-		get_scooped(H)
+	if(human.a_intent == INTENT_HELP)
+		get_scooped(human)
 		return
 	return ..()