Yep. I interned at my high school over the summer back in the late 90's and (aside from ghosting pcs or helping with Windows login stuff) also managed the tapes for our main server. The underling in the it shop, one afternoon, was showing me something and to prove a point about RAID, pulled one of the drives from the servers raid array, then plugged it in again. It was magic!

Fast forward a month. I do the same thing when talking to someone. The next day, the sever is offline. I either pulled the wrong drive, the array was degraded, or some actual failure occurred overnight. I'll never know.

I did, however, learn that day about how veritas backups work, and to always know wtf I'm doing before showing off. :-)