Mootoo wrote:
Can I take a sledgehammer to a car whose alarm is going off?
You could do... but you'd have to live with the possible consequences of being charged with criminal damage and possibly have a big fine to pay as well as costs of repairing the damage.
I do sympathise though. When I was a student I lived briefly on a noisy housing estate. The next door neighbour woke everyone up in the street when he started his car and went to work every morning at around 6 am. This went on for several weeks. It sounded like he was driving a tank! One night I sneaked out in the dark with a large potato, intending to jam it onto the end of his exhaust pipe... then I realised why his car made so much noise... it didn't have an exhaust pipe! It must have rusted and fallen off. It was completely missing! So I let all his tyres down instead.
The following morning I got woken up at 6 am as usual when he started his car then a few moments later there was a lot of cursing and shouting.

He got his car fixed a couple of days later with a new exhaust pipe.
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I've left WP indefinitely.