A woman took here dog to the Vet's
He looked at the dog, and said, "so what's the problem"?
She said, "he's gone all crossed-eyed".
True enough it had, so the Vet picked the dog up and checked it's eyes, it's ears and it's face.
He then said to the woman, "I'm gonna have to put him down".
"You what?!" said the woman, "He's only crossed-eyed!".
"Yes" the Vet said, "but I can' hold him forever, he's bloody heavy!"