A man took his Rottweiler to the vet.

“My dog is cross-eyed, is there anything you can do for him?”

“Well,” said the vet, “let’s have a look at him then”, picking up the dog, first carefully examining his eyes, followed by a check on the dog’s teeth.

Finally he said, “I’m going to have to put him down.”

“What?!” exclaimed the man. “Because he’s cross-eyed?!?”

“No. Because he is really, really heavy.”