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 horses legs and rump, and chest..

After a few minutes, Johnny asked, Dad, why are you doing that?

His father replied, Because when Im 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 UPS guy wants to buy Mom .