Two guys were sitting on a porch, discussing (who cares what they were talking about?) something not very important, when they noticed a dog licking himself in the front yard. The dog was intent on his work, nose planted between his hind legs, tongue making loud slurping noises.
Both men stopped talking so that they could watch the dog.
“I wish I could do that,” one guy said wistfully.
“He doesn’t like strangers,” the other guy said. “You’d better pet him first.”