It is funny how the times change, but the pranks don't !!! Working in a Crypto-Comm center dealing with
'other-folks mail' back in the pre-cell/satellite days, we had our own 'errands' for newbies.
Carbon-paper rubbing of a persons headsets while they were on a pit-stop or coffee break was common, yet many fell for it over and over.
Having a newbie tape-record certain signals so they could be run by the direction-finder guys at a later time to locate the transmitter seemed to catch new guys over and over as well. ( FYI you must do a DF shot on a 'live' signal to discern from whence it was transmitted...)
Tieing a series of constricting knots in headset cords was a sure-fire way to slow down the morse-code being copied by new operators (NOT). In RTTY the mission of slowing signals to make for easier copy was to use a device called a baud-stretcher (imaginary)..many hours were spent trying to locate one.
And on a more personal note- We had a Chaplin (Major) who was an arrogant holier-than-us guy, who wouold come thru the center to encourage the troops to maintain their high moral character while serving in Japan. He had to have an escort in our area as he was not cleared to be near some of the machines we used. I would always assign one of the troops who had the uncanny ability to flagulate on request, with terrible clouds of green fog... I mean real frog-chokers !!!
We would wait til the Chaplin begain his rant against sins of the flesh, then I would give Dennis the signal and he would (standing next to the chaplin) "
Cut-One". Worked every time for over a year...cut short the rant and the visit immediately !
I am sure I can come up with more, but some are still classified due to the folks were were listening to.
On another scene, some years later...One of the best uses for
ARBY's Horseradish Sauce was to empty my receptionist's hand-lotion squeeze-bottle while she was on vacation, then fill it with the white Arby's Gunk. When the lady returned and started using her lotion at her desk one morning, she got it almost up to her elbows before the smell got to her... Try it, it was a spectacular stunt !