As usual, I make MY day!
how? very simple! jsut play small tricks to colleagues!
today I had the pleasure to make one of those !
We were testing a new software to backup files at office (VSS, for those who know it). for testing purposes, it was agreed that i back up some files on my PC, and my colleague (the one who set up the VSS) tries to view them from another machine. Quite simple, and straight forward application
So, we "backed up" one small file on my PC, then my colleague went to his mahine, in order to check whether he can access it. He should have in normal days, not if I removed the file meanwhile! he tried the scenario a couple of times, and i was always deleting the backed up file!
He finally removed the application from both PCs (mine and his), then re-installed it from scratch, with no further success, 'cause i was still in a

mood !
Since things "were not working fine" today, I have a garanteed couple of hours that would make my day tomorrow morning!
