12/04/2011 07:30 am ET

Karate: Should It Be On Your Bucket List?

A few years ago, for martial arts instructor Harry Grimm's 50th birthday, his wife treated him to a trip to Bimini. On a snorkeling cruise, the captain of the boat noticed that Grimm was wearing a T-shirt from a seminar by motivational speaker Tony Robbins (who also, it should be mentioned, is a black belt in the Korean martial art of Taekwondo).

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