In Smokey and the Bandit, The Bandit claims, "I Take My Hat Off For One Thing, One Thing Only." A lot of us know where's he's going with that, but it seems silly that he never takes the hat off. What happens if he needs to take a shower? Perhaps if he wants to go to sleep at night? Perhaps he feels safer with his cowboy hat. Bill got this shirt because he, like The Bandit, feels naked without a hat.