A farmer just got married and was going home on his wagon pulled by a team of horses. When one of the hoses stumbled, he said, That's once. Then it stumbled again. He said, That's twice. Then later it stumbled a third time. This time, he didn't say anything, just pulled out a shotgun and shot the hores dead. His wife cried out and started to yell at him. The farmer turned to her and said, That's once.