I just regret not being fast enough, when watching the SpaceX launch webcast, to take a screenshot when their video server crashed and I ended up looking at a OSX desktop, complete with mouse pointer, with a 'This application has terminated unexpectedly' dialogue in the middle of it.

I remember being vaguely impressed with their desktop background, but I can't for the life of me remember what it was...

(Also, at Beijing airport I *did* see one of their huge LED matrix screens with a Windows error box in the middle of it. Probably not a good place to haul out a camera.)