If tossing a beer over a bridge, while on a boat and attempting to catch it a 'thing' - I had no idea. That being said, it is a pretty cool trick, especially when you nail it. 

The trick sounds easy. Throw a beer over a bridge from inside a boat and attempt to catch it after you (the boat) go under the bridge. First of all, I would not even be able to toss the beer over the bridge. Upper body strength is something I do not have. IF I could throw a beer over - I know I would not be able to catch it. I would most likely be hit in the head with it.

If you are going to attempt this - be careful. If you plan on attempting it when I am in the boat with you, let me know so I can wear a helmet.