Which reminds me of another time. My friend (who happens to be the brother of the guy whose goods we advertised upthread) and I both had ‘vintage’ British cars. He had a 1966 Triumph Herald. I had a Mini Marcos based on a 1968 Austin Mini. In keeping with the quality of British automotive engineering in the 1960s, there were only a few hundred different key types. And each key was numbered with its type. Clearly they didn’t anticipate the drawbacks of such a system. One day he borrowed my car and noticed that my Mini key had exactly the same serial number as his Herald key. He began to hatch a dastardly plan.
A few weeks later I was rehearsing for a play, and when I came out of the rehearsal, my car was gone. It was well before cellphones and there wasn’t a phone for miles. Everyone else had gone home. I wandered around for a while in indecision. I was only three miles from home so I could have walked, but I wanted to alert the police ASAP. I decided to knock on the door of the nearest house and report it stolen. As I walked out of the parking lot I saw a glint from behind a dumpster. There hidden in trash was my beloved car.
I vowed revenge would be mine, and would be served cold.
Several months passed. One weekend morning I saw my chance: he was out in the street tuning his engine. I hid and waited for him to go indoors to take a break. I then slunk along the street below his kitchen window, and went to the car. If you look at the picture linked above you’ll notice that the hood has locks on the side closest to the bulkhead and the hood hinges at the front. Reasoning that that if his keys would open my car’s locks, then reverse would also be true, I successfully unlocked both sides, then making sure nobody was looking out of the kitchen window, very swiftly opened the hood and very swiftly changed the order of his HT leads from 1234 to 2143. I then shut the hood, locked it, and snuck away.
He came back from his break, finished the service, then tried to start the thing up to spin it round the block. The starter turned over fine, but the engine was damned if it was going to start up. He spent the next three hours swearing and scratching his head, pulling the thing to pieces, checking the starter motor, dismantling the distributor, even taking off the HT leads - making sure to preserve their order - and cleaning and re-gauging the spark plugs.
When he went in for another break I snuck out again and switched the HT leads back to the correct configuration. He spent another hour or two on the car before exasperatedly trying the key in the ignition for one last time, and it started up perfectly. I nearly broke a nut laughing.
Seeing that written down it’s not the funniest prank ever written, but fuck me it was hilarious at the time, particularly when he was whining about it in the pub for an hour that evening.