where he puts a ball underneath an upside down cup then juggles three of them arround and you have to guess which cup the ball is under? Welll I have two cans of beer, one empty, one full, and I keep picking up the empty one.
I would throw the empty one in the bin but teven then, I reckon, the other one would be empty when I picked it up then beer would starting flowing merrily in it's white frothy gush, from underneath my bin. PAH!