We used to always send the new mechanic in the shop out to the auto supply store to get a metric crescent {adjustable} wrench...it's even funnier when we would call ahead and tell one of the parts salesmen. He would pull out a crescent wrench and say "sorry, we only got this english one."
The building industry is full of these too...roll of pipe threads, brick bender, sky hook.
We had a young female supervisor working with our crew of 30ish guys for a while. We all loved her, but didn't hesitate to "mess with" her. One of our gags was telling her we need some metric channel locks. She wrote it down, and put in a requistion for them.
We'd also call her, and wave her over to where we were, then ask, "Where would you be if we hadn't called you over here?"
We were starting up a new plant facility. There were a few feral cats in the old building that were as wild as a march hare. We were all standing around a pallet of empty waste barrel one morning, and got to talking about how mean and wild these cats were. The young lady was looking all around with her eyes about the size of saucers. One of the fellows started to "meow...meow...meow" when she wasn't looking. She jumps...where is that cat? I looked down between the barrels and said "There's that so and so!" I reached down into one of the barrels, and started beating my hand back and forth inside the barrel, while making a POed cat noise...wherrreee,snarll, whereeeee!!! Supervisor screamed. She just knew that cat was ripping my hand to a bloody pulp. And this at a company who's moto is "Safety is our No 1 product" or something like that. She just KNEW she was going to be writing reports for the rest of her career about not only how it happened, but why she let it happen.
I thought she was going to kill me if the cat didn't.
But she did turn the tables once in a while and spoil our fun.
We thought we'd get her one day. Got the secretary to write a note and leave it on her desk. "Tell Wayne, Diane called." There were two of us named Wayne, and both our wives were named Diane. We figure this would really confuse her.
She fooled us. She came in, pointed to both of us and said "Call your wife." Drat.
