If you do extra-surprising scare tactics like that, don't be surprised if someone goes into that mode. I loved it.
Smart guy though, to have the video camera running just in case... I doubt the guy who socked him knew there was a camera there, rather he honestly felt bad for taking him out.
I like it, I like it. I saw the ABC logo in the corner, and knew it was going to be a 'America's Funniest Home Videos' clip, which are never funny, but this was pretty good.