stop this nonsense

code/game/objects/items/devices/camera_bug.dm

@@ -62,15 +62,15 @@
 /obj/item/camera_bug/check_eye(mob/user)
 	if ( loc != user || user.incapacitated() || user.eye_blind || !current )
 		user.unset_machine()
-		return 0
+		return FALSE
 	var/turf/T_user = get_turf(user.loc)
 	var/turf/T_current = get_turf(current)
 	if(T_user.z != T_current.z || !current.can_use())
 		to_chat(user, "<span class='danger'>[src] has lost the signal.</span>")
 		current = null
 		user.unset_machine()
-		return 0
-	return 1
+		return FALSE
+	return TRUE
 /obj/item/camera_bug/on_unset_machine(mob/user)
 	user.reset_perspective(null)
 

code/game/objects/items/devices/dogborg_sleeper.dm

@@ -59,7 +59,7 @@
 	return ..()
 
 /obj/item/dogborg/sleeper/Exit(atom/movable/O)
-	return 0
+	return FALSE
 
 /obj/item/dogborg/sleeper/proc/get_host()
 	if(!loc)

code/game/objects/items/devices/lightreplacer.dm

@@ -170,7 +170,7 @@
 /obj/item/lightreplacer/proc/Use(mob/user)
 	playsound(src.loc, 'sound/machines/click.ogg', 50, 1)
 	AddUses(-1)
-	return 1
+	return TRUE
 
 // Negative numbers will subtract
 /obj/item/lightreplacer/proc/AddUses(amount = 1)
@@ -239,9 +239,9 @@
 /obj/item/lightreplacer/proc/CanUse(mob/living/user)
 	src.add_fingerprint(user)
 	if(uses > 0)
-		return 1
+		return TRUE
 	else
-		return 0
+		return FALSE
 
 /obj/item/lightreplacer/afterattack(atom/T, mob/U, proximity)
 	. = ..()

code/game/objects/items/devices/multitool.dm

@@ -236,11 +236,11 @@
 
 /datum/action/item_action/toggle_multitool/Trigger()
 	if(!..())
-		return 0
+		return FALSE
 	if(target)
 		var/obj/item/multitool/ai_detect/M = target
 		M.toggle_hud(owner)
-	return 1
+	return TRUE
 
 /obj/item/multitool/cyborg
 	name = "multitool"

code/game/objects/items/devices/traitordevices.dm

@@ -217,7 +217,7 @@ effective or pretty fucking useless.
 
 /obj/item/shadowcloak/item_action_slot_check(slot, mob/user, datum/action/A)
 	if(slot == ITEM_SLOT_BELT)
-		return 1
+		return TRUE
 
 /obj/item/shadowcloak/proc/Activate(mob/living/carbon/human/user)
 	if(!user)