A lady and her dog were enjoying a stroll in the park when her dog was mounted from behind by a large Rottweiler. The Rottweiler was really humping away and the lady was frantically trying to break them up, to no avail.A small boy walked up and stuck his finger in the Rottweilers butt, and the dog leapt in the air and the action stopped immediately.The lady was amazed. How did you do that? she asked.The little boy said, Thats my dog! He can dish it out, but he cant take it!