A man takes his Rottweiler to the vet. "My dog�s cross-eyed, is there anything you can do for him?"

"Well," says the vet, "Let�s have a look at him."

So he picks the dog up and has a good look at its eyes.

Well, "says the vet, "I�m going to have to put him down."

"What? because he�s cross-eyed?"

"No, because he�s bloody heavy."