Fixes up a few Destroys

code/game/objects/items/devices/radio/headset.dm

@@ -25,7 +25,16 @@
 	if(ks2type)
 		keyslot2 = new ks2type(src)
 	recalculateChannels(1)
-	
+
+/obj/item/device/radio/headset/Destroy()
+	if(keyslot1)
+		qdel(keyslot1)
+	if(keyslot2)
+		qdel(keyslot2)
+	keyslot1 = null
+	keyslot2 = null
+	return ..()
+
 /obj/item/device/radio/headset/list_channels(var/mob/user)
 	return list_secure_channels()
 
@@ -326,7 +335,7 @@
 			user.drop_item()
 			W.loc = src
 			keyslot2 = W
-			
+
 		recalculateChannels()
 	return
 

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

@@ -69,6 +69,17 @@ var/global/list/default_medbay_channels = list(
 
 	internal_channels = default_internal_channels.Copy()
 
+/obj/item/device/radio/Destroy()
+	qdel(wires)
+	wires = null
+	if(radio_controller)
+		radio_controller.remove_object(src, frequency)
+		for (var/ch_name in channels)
+			radio_controller.remove_object(src, radiochannels[ch_name])
+	patch_link = null
+	return ..()
+
+
 /obj/item/device/radio/initialize()
 	if(frequency < RADIO_LOW_FREQ || frequency > RADIO_HIGH_FREQ)
 		frequency = sanitize_frequency(frequency, RADIO_LOW_FREQ, RADIO_HIGH_FREQ)

code/game/objects/items/weapons/explosives.dm

@@ -17,6 +17,12 @@
 	wires = new(src)
 	..()
 
+/obj/item/weapon/c4/Destroy()
+	qdel(wires)
+	wires = null
+	target = null
+	return ..()
+
 /obj/item/weapon/c4/suicide_act(var/mob/user)
 	. = (BRUTELOSS)
 	viewers(user) << "<span class='suicide'>[user] activates the C4 and holds it above his head! It looks like \he's going out with a bang!</span>"