alt Hacker NewsSo many pranks, I didn't bother waiting until April 1st to pull them.
Prank 1: In high school we wrote a fake DOS for our Apple II+. It accepted commands and ran them, but occasionally would reply with a snarky message. Our teacher was not amused.
Prank 2: This was the late 1970s/early 1980s when laser printers cost many thousands of dollars, and neither me nor my high school peers had ever seen one. I found some CGI images in a computer magazine and Xeroxed them onto pin-feed paper for dot-matrix printers. I showed them to my friends and convinced them that I owned a laser printer. The pin-fed holes just added to the authenticity, since they had no idea how a real laser printer worked.
Prank 3: My parents changed checking accounts and had a whole book of unused checks. I told my father I wanted to do a prank and he agreed to write one of those checks for $600. I showed the check to one of my classmates at the beginning of the day and told him I was going to buy a computer after school, and he could come with me. When school ended and my classmate found me, I took out the check, declared I no longer wanted a computer, and ripped it up in his face. He was stunned.
Prank 4: The local library had an Atari 400 with a coin-operated TV screen ($0.25 for 15 minutes). Without the use of the screen, I wrote a simple BASIC program to emit a beep randomly every few minutes, started it running, and walked out the door.
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> I wrote a simple BASIC program to emit a beep randomly every few minutes, started it running, and walked out the door.
Some 15+ years ago ThinkGeek productized this as the Annoy-a-Tron, a small magnetic circuit board which could run on a coin cell for weeks. Tuck one of these into a well-hidden place and it will dismantle the sanity of anyone spending enough time around it.
Other more refined versions exist now from a plethora of vendors, I will refrain from linking them here.
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.