It is within the letter of the law of NHL hockey to employ a goalie who is obese enough to sit on the ice and obstruct the entire mouth of the goal.  But can you get away with it?

As strange as it may sound to anyone with a sense of decency, there is actually sound reasoning behind it. Because of the geometry of the game, the potential for one mammoth individual to change hockey is staggering. Simply put, there is a goal that’s 6 feet wide and 4 feet high, and a hockey puck that needs to go into it in order to score. Fill that net completely, and no goals can possibly be scored against your team. So why hasn’t it happened yet?

One answer is that professionalism and fair play prevent many sports teams from doing whatever it takes to win. This is also known as “having no imagination.” Additionally, in hockey the worry of on-ice reprisal from bloodthirsty goons would weigh heavily on the mind of any player whose very existence violated the game’s “unwritten rules.”

Hit the link for the full analysis, including a field experiment.  In a WSJ excerpt from a book entitled Andy Roddick Beat Me With A Frying Pan.  Helmet huck:  Arthur Robson.