Here already I slipped a "harmless" joke with the socket :) offers a truly harmless joke, after which some of my colleagues may slightly hit the ceiling
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The idea is simple:
Copier make a bunch of copies of a paper clip on paper plates with display Take a paper clip and put them in the tray with a clean paper (regular size). Photocopier something to check. If the picture clips came from the wrong side overturn the "raw material" in the tray. Waiting for the victim and seeing how angry employee will try to find a "fucking" clip on the copier glass, or maybe even in the depths of the mechanism
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