Problem: You're in the middle of a golf course, and you really gotta pee. The club house is far away, and you don't want to go in the bushes (they frown on that sort of behavior ...)
Solution: Pee into your golf club ... the UroClub, that is: the "club" is actually a hollow cylinder that will store your pee. You can then empty it at the nearest bathroom or at home. It even includes a towel for privacy :)
Even if the Doc hadn't gotten a shark deal, we'd still have bought it from his website, just from the exposure on the show.