This Mythbusters video is really old, but it's funny seeing Roger Clemens try to be personable when he's really a prick.
I hit the cover off of a baseball once. It was a really old baseball that was rotting from moisture and exposure to sun. Even with the laces ripped pretty well, I still had to hit the ball as hard as I could for like two hours before the innards were freed from the hide. I felt like Robert Redford though, so it was all worth it.
Go Padres!