http://www.youtube.com/watch?v=Ma8l5udOlvc&feature=player_embedded
That did look like it hurt, but it also looks like that part of the road is padded!
Don't know if it was acting or not but he really did whack his head on the pavement.
And he even starts to practice it after! I listened to the audiobook last summer and it was a blast.
- The Bar 1.3 -