Worst thing to happen to your computer

[morningstar]

Inspired my the massive problems I've been having trying to get my new(er) computer running, resulting finally in an unreadable external hard drive and an unstable computer. That's 6 years worth of data gone. My music!
Anyways, what's the worst thing that's happened to yours? Or any item of electrical equipment.

[pianoplayer88]

One time we lost a bunch of pictures of my little sister as a baby that were on our computer.

[db05]

Brownout while defragging. After that, nothing worked. We had to install all over again.

[morningstar]

One time we lost a bunch of pictures of my little sister as a baby that were on our computer.

How did you manage to lose them?

Brownout while defragging. After that, nothing worked. We had to install all over again.

Lovely. Hate it when that happens, then people get me to fix it and windows vista takes FOREVER...Get a UPS lol.