A guy is sitting quietly reading his paper when his wife sneaks up behindhim and whacks him on the head with a frying pan.
"What was that for?" he says.
"That was for the piece of paper in your pants pocket with the name Mary Lou written on it," she replies.
"Two weeks ago when I went to the races, Mary Lou was the name of one of the horse I bet on," he explains.
She looks satisfied and apologises.
Three days later he is again sitting in his chair reading when she nails him with an even bigger frying pan, knocking him out cold.
"When he comes to, he says,
"What the hell was that for?"
"YOUR HORSE CALLED!"