Cross Eyed Dog

A man took his Rottweiler to the vet and said to him, "My dogs cross-eyed. Is there anything you can do for it?"
"Well," said the vet "let's have a look at him" The vet 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."

"Just because he's cross-eyed!!!!?" the man shrieked.

Vet thought for a moment and replied ... "No, because he's heavy,"