Heard this one on the radio this AM.
Little Johnny went with his father one day to buy a horse. He watched as his father inspected the horse very carefully, running his hand up and down the horse's legs and rubbing the horse's flanks and rump etc. generally giving him a complete check over. Little Johnny watched carefully and then asked what he was doing. "Why I'm checking to make sure this horse is healthy and strong and has no problems". Johnny stood there for a minute then said, "Dad, I think the pool guy is gonna buy Mom".
Cheers - Dennis