That one is all too realistic though. Back in college I had a professor SCREAM at me and my boss that I broke her computer while doing the cleaning and upgrading I was doing that summer. I know it worked after we were done because I had turned it on and verified it (one of the things we were doing was upgrading the memory - to 640K!). Force of habit though, I flipped it off via the power supply switch. Go back to her office, she's looking like she wants to scream at me again, I casually reach behind the computer and flip the power switch on, and of course it all works perfectly. The first of many of the same sort of thing happening over a long IT career.