My best (worst?) tech support call was an "Our printer's broken." How can you tell? "There's a bullet hole in it."
Ahhh, right, we'll get that replaced then. And I will never work at a bank branch.
Financials have all the fun! I know somebody who used to work (not in IT) in a large securities trading company. If people had a problem with any IT kit there, they would simply smash it up. He saw three people once that had a paper jam or something in a printer. They pushed it over, smashed it up with chairs, and then rang the help desk "Hi, the printer on our floor's not working."