I was plugging in the power supply for a backup drive I just got (you can see the irony here) and while I was rearranging the plugs on the surge protector strip the power switch on the strip got bumped and my iMac turned off. Of course I instantly re-flipped the switch but it was too late. The iMac was off. My iMac was in the middle of downloading files and I'm just wondering what is the probability that I have hard drive damage or data corruption now as a result of this? And how would I even test for that? Is there some sort of protection built in (like a backup battery) in the iMac to protect it in situations like this? If there isn't there damn well should be.