"Last year on April 1st, I made up a memo with an official-like letterhead, and passed it out to the people answering the phones in our clinic. The memo said that there was a cut in the fiberoptic phone line, and since then, dust has entered the line, and needed to be "blown out"."
We pulled that stunt on this one particular sorority girl at OU who was rather cute but dumber than dirt. Frank called her one night and convinced her he was with the phone company and she needed to put her phone in the trash can and put a blanket over it. An hour later one of her sisters called wanting to know if we'd been messing with her sorority sister again cause her phone was in the trash can.
I used to carry a few Magnum Condoms with me and every time someone asked me to hold their wallet - I would add one.
Especially fun for the married guys.
;-)
At the airport who "apres flight" we would meet in one of the regular's hangars for cocktails. One guy used to drink every day there - and never replenished the stock. He hated Gin - loved Vodka. So, we would buy Vodka and pour it into the Gin bottles and Voila... he stopped drinking our Vodka.
I also used to pick Gay Pride flags on my friends' cars.
For a 50th Birthday Gift - I would sign people up for Depends Coupons, adjustable bed information and video tapes, Scooter information, etc. etc.
The rest are too mean to tell....