How about this one. I was at a client installing a bar code software on a server in their server room. That particular Server would have virtually no negative impact on the rest of the 75-Sage 100 users in three companies across 6 states. When I added the keys, I decided to grab a screen shot as my own reference that I had typed them in correctly. Which, BTW, was where I made my mistake! I pressed the ""Prt+Sc"" button, or what I ""thought"" was the Print Screen Button, and the server room went quiet. Completely quiet. Not one single server was still humming. The monitor screen went black and at the exact second I pressed that Print Screen Button (again, what I thought was the Print Screen Button), every single server in the Server Rack (8 of them); every single server stopped to hum and lost power. It became so very quiet. You could start to hear the user chit-chat and the phones ringing off the hook as I stood there and tried to figure out how we had lost power to everything and how the Power Backups did not turn on.
Turns Out, the Print Screen Button was a POWER Button. And the Power Button turned off the power to the entire rack system and every server, completely bypassing their Power Backup system. Pressing a single key on the keyboard was linked to the entire rack system. My pressing that button turned off the power to everything and bumped everyone out of Abra Payroll, out of Sage 100, out of their JOScan Software, out of their Time Clock System, out of their File and Print Server, out of their Outlook Server, out of the Terminal Servers, out of Everything. And when I asked their internal IT guy why there was a button on the keyboard that did that, his response was ""well, why did you press the button?