My TV stopped working, and after faffing about checking the fuse and stuff, I decided to take it into another room, just to see if it decided to work via another socket for some reason - and do you know, the bloody thing actually came on.
Now I had to struggle back with it, none the wiser as to why it suddenly decided to give me the business.
I'm not a fan of pranks at the best of times, but I really don't need to be punk'd by my own devices.