My old boss kept having his 100 series broken into, got a pack of smokes emptied the tobacco from 2 or 3 filled them half full of gun power topped it up with nicotine.
Doesn’t blow up, but it flares up and scoulds the fuckers. Left 5 smokes in there scrunched up the pack left one exposed put it on the dash – left the car unlocked.
1 week later, packets gone
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+1 on electric fence