I know we all thought that Blizz had the most talent in his pants, but I'm afraid Steve Martin has one-upped him:
http://www.youtube.com/watch?v=SJTKgncSRsg (http://www.youtube.com/watch?v=SJTKgncSRsg)
Lol, invisible threads. xD
There's actually a semi-obvious explanation, but you should let people figure it out for themselves.
A hand in his pants? :V: