Had a bit of a scare today. One of my colleagues tripped on a power cord, sparks flew out the outlet, and a smoke puff came out of the back of my mini (2009). It instantly turned it's fan on at full speed before we disconnected it. You could detect a faint burned plastic smell coming from the back, but after plugging it somewhere else, it turned on just fine. Might be related or not, but my magic mouse started going nuts intermittently after that. I'm taking it in to an authorized repair center tomorrow, but wanted to hear some opinions too. Has this happened to anyone before?