Little Johnny attended a horse auction with his father.
He watched as his father moved from horse to horse, running his hands up and down the horse's legs, rump and chest.
After a few minutes, Johnny asked, "Dad, why are you doing that?"
His father replied, "Because when I'm buying horses, I have to make sure that they are healthy and in good shape before I buy."
Johnny, looking worried said, "Dad, I think the FedEx guy wants to buy Mom."