1) All the data for a medical practice lost after it was found that the user had been doing daily incremental backups for two years, on the same backup disk (no full backup existed).
2) User fed clasp-envelope through laser printer (note deep groove worn into fuser roller).
3) Server backup failing every day since help desk personnel would reboot the server when it got slow (during backup).
4) Server admin set AM/PM wrong on server, forced entire building to logout after 12:00 noon.
5) Toddler visiting data center pushes ‘da big happy red button’ (data center emergency power off).
6) Programmers making popcorn trip FM-200 system in data center after smoke from their microwave drifts into an air vent.
7) User configures background and foreground colors of terminal to be the same, says she cannot connect to mainframe, yet somehow the cursor was in the correct screen position.
8) User plugs ethernet hub into both switched ethernet jacks in his office, causing network outage since spanning tree was disabled.
9) User of old daisy-chained Ethernet admits that he disconnects everybody downstream from him when he’s under deadline to get his work done.
10) Vendor plugs in Linksys router in conference room, assigning 192.x.x.x addresses to 80 people at the corporate headquarters, including the CEO and his staff.