Your mention of a self destruct button reminded me of a time long ago when I worked in car audio - I had a customer who owned a Porsche 944 and he had a pull out Kenwood cassette player - an expensive one back then was around $500 - Now this gentlemen would religiously pull out the stereo and bring it in - but 3 times over the course of 90 days, someone broke his window and stole the sleeve.
He asked me what we could do, I tried to sell him an alarm, but he didn't want it going off - he suggested that I solder fish hooks to the sleeve - I thought it an interesting idea - but didn't want to be sued.
Turns out he was a judge and had a release made up - we both signed and the hooks were in.
No less than a week later, he came by the shop to show me the blood soaked carpet of his Porsche.... we never replaced it again...
Ahh the 80's - when you could get away with small acts of ultra - violence.