Pranking your buddy's cars

Maybe I had a bad upbringing or maybe some poor friend choices 

The airport fire guys had some funny 12g shotgun cartridges for bird scaring that fire a little projectile which subsequently exploded some distance away.  We acquired a few, extracted the explosive charge, wrapped it with a few turns of nichrome toaster wire and connected between the ignition coil and ground. Made a seriously scary explosion under the vehicle, not recommended to leave it actually in the engine bay.

A friend had a summer holiday job working in the body shop at GM and one year they were doing a run of police / traffic cars. Apparently they all ended up with handfuls of nuts and bolts inside all the body cavities and frame rails before they were spot welded.

Early in my career I worked on punched tape machines and every day there was a very large bin of "chads", think paper confetti but smaller, to throw away. A colleague was getting married and a significant quantity of these got put in the cowl vents. For better or worse the heater / fan didn't get used immediately but when it did apparently it was like an indoors snow storm.

A particularly unpleasant character in the neighbourhood was off on his summer holidays to a beach several hundred miles away. The night before his departure some enterprising individuals climbed under his car and wired a large, frozen, whole fish to the muffler with predictable results. I doubt they ever got the smell out of the car 

RichardNZ said:

A particularly unpleasant character in the neighbourhood was off on his summer holidays to a beach several hundred miles away. The night before his departure some enterprising individuals climbed under his car and wired a large, frozen, whole fish to the muffler with predictable results. I doubt they ever got the smell out of the car 

This is genius. I mean, uh, a cruel and terrible thing to do to another human being ... yeah, that's what I meant to say ...

DarkMonohue said:

RichardNZ said:

A particularly unpleasant character in the neighbourhood was off on his summer holidays to a beach several hundred miles away. The night before his departure some enterprising individuals climbed under his car and wired a large, frozen, whole fish to the muffler with predictable results. I doubt they ever got the smell out of the car 

This is genius. I mean, uh, a cruel and terrible thing to do to another human being ... yeah, that's what I meant to say ...

I've found that a single, large frozen jumbo shrimp is a much more convenient way to accomplish similar results.

My BIL had a co-worker whose car they somehow got a spare key for. During the day they would move it around the parking lot to a different space. Maybe just a few over, maybe a different row. Guy had to think he was going nuts coming out and not finding his car where he parked it in the morning.

The founder of FM used to have some great stories from back in the 80s. One involved Audis with a copper colored upholstery. He'd take a piece of wire, strip the insulation off a long piece and fan it out. Lay it on the driver's seat - it's invisible against the upholstery - and hook it up to the coil. Then get the victim (a coworker) to start the car.

He also had a Porsche customer who was...not likeable. So he took apart the guy's Fuzzbuster and put aluminum foil over the antenna. 

A coworker of mine talked about how at one place he worked, there was a tech that was always pulling his Jeep Wrangler in the shop and tinkering with it. One time, when he walked away, they put a tee in the washer fluid line, ran a new line through the firewall wiring harness grommet and zip-tied it to the bottom of the steering column aimed at his junk. They waited for weeks for any sort of response from him, never got it, and then he sold off said Wrangler. The next day, the guy he sold it to, showed up at the shop, just about dragged the guy out into the parking lot and was ready to beat his ass, screaming "You think your funny?". Turns out the tech had never used the washer fluid the entire time since they'd made their modification and then unknowingly sold it to this guy.

I would just pull up my buddies hand brake so high they couldn't disengage it. Watching someone struggle with that is great fun 

I've written a lot of questionable things on peoples windows with chalk. I did the plastic wrap and post it's as well. Cars were really just a by product of pranking friends houses. We had a good guys v. girls war going in high school. 
 

Putting 2k paintball rounds on someone's lawn was surprisingly good. Those have to be picked up by hand.