The show was known for its use of subtle humor and at one point Heyes used a pun that many people may not have realized. When the Sheriff asks Hayes if he was sure he wanted to go on the expedition, he replied that he was a man of princiPLE, and that $30.00 was a lot of princiPAL. This was a sizable amount of money, equal to a little bit more than an ounce of gold, which is now worth about $1,750 an ounce.