WTF??? That guy doesnt know shit about killing an engine. The nails got eaten up in the first few cycles and spit into the axaust, at worst the engine will run crummy. The only reason it sounded so bad is because he was only firing on 3 cyl.
If he really wants to destroy the engine, unplug the fan, then start it up and put a brick on the gas pedal, return in 45 mins and start the engine again and do repeat until the engine doesnt start.
-or-
Unplug the distributor or cut a fuel line or some random thing that will keep the engine from running, then tell her its broken, and buy a new one, she won't know the difference, its a girl, they dont know shit about cars. Then he will have a working engine to sell and recoup some of the costs
__________________
|