So like 10 years ago or something, this guy charged Nolan Ryan at the pitcher's mound and then got put into a headlock and punched in the face repeatedly by Nolan Ryan in front of however many assholes were watching the game...

I've been looking for a video of it, but I think the MLB or ESPN has gone through extensive trouble to keep it off of the internet. However, there are photos of the event. More surprisingly, there are photos of Nolan Ryan punching Robin Ventura, that are actually autographed by Nolan Ryan. Even more awesome though is that you can actually buy a signed copy from Wal*Mart:

http://www.walmart.com/catalog/product.do?product_id=4964981