More pranks, this time after I got a job in the corporate world working for Big Company in the late 1980s:

Corporate Prank #1: Back in the DOS days, when the standard office computer was an IBM AT with a small built-in speaker capable of being programmed to beep, I set up the autoexec.bat file for several workstations to play (quickly, and at low volume) the first eight notes from the melody from "Brazil." The movie had just come out, and I thought the tune would be a fitting commentary on the parallels to the corporate life.

Corporate Prank #2: Every year or so the cafeteria would print surveys on blue cardstock and put them on all the tables asking questions like "Were the cashiers friendly?" and "How was the temperature of the food?" My friend and I found matching cardstock and mocked up copies, but changed the questions subtly, e.g. "How was the temperature of the cashiers?" and "Was the food friendly?" and distributed them to all the tables. Never found out what happened, but I'm sure management wasn't happy.

Corporate Prank #3: One day I went with my friends "B" and "C" to a different corporate cafeteria where you paid a flat rate just before exiting. "B" managed to find an emergency exit door just before the cashiers which let him make his way to the elevators without paying. Now the setup for the prank: every few months one of the departments would distribute company-wide security memos (on paper) which would get distributed to every desk. Me and "C" mocked up one of those security memos (complete with a police artist style sketch of "B", who had skipped out without paying) which warned everybody to be on the lookout for the suspect who was last seen exiting the cafeteria through an unmarked door, and should be considered dangerous. We made photocopies and put them on every desk.