More and more Destroy() cleanups all across the board - Return qdel hints.

code/modules/power/breaker_box.dm

@@ -20,7 +20,7 @@
 	var/update_locked = 0
 
 /obj/machinery/power/breakerbox/Destroy()
-	..()
+	. = ..()
 	for(var/datum/nano_module/rcon/R in world)
 		R.FindDevices()
 

code/modules/power/cable.dm

@@ -108,7 +108,7 @@ var/list/possible_cable_coil_colours = list(
 	if(powernet)
 		cut_cable_from_powernet()				// update the powernets
 	cable_list -= src							//remove it from global cable list
-	..()										// then go ahead and delete the cable
+	return ..()									// then go ahead and delete the cable
 
 // Ghost examining the cable -> tells him the power
 /obj/structure/cable/attack_ghost(mob/user)

code/modules/power/grid_checker.dm

@@ -28,7 +28,7 @@
 /obj/machinery/power/grid_checker/Destroy()
 	qdel(wires)
 	wires = null
-	..()
+	return ..()
 
 /obj/machinery/power/grid_checker/update_icon()
 	if(power_failing)

code/modules/power/lighting.dm

@@ -248,7 +248,7 @@
 	if(A)
 		on = 0
 //		A.update_lights()
-	..()
+	return ..()
 
 /obj/machinery/light/update_icon()
 

code/modules/power/power.dm

@@ -19,7 +19,7 @@
 	disconnect_from_network()
 	disconnect_terminal()
 
-	..()
+	return ..()
 
 ///////////////////////////////
 // General procedures

code/modules/power/singularity/collector.dm

@@ -23,7 +23,7 @@ var/global/list/rad_collectors = list()
 
 /obj/machinery/power/rad_collector/Destroy()
 	rad_collectors -= src
-	..()
+	return ..()
 
 /obj/machinery/power/rad_collector/process()
 	//so that we don't zero out the meter if the SM is processed first.