Because no one else will do it for them!
Put both of them in the trunk of your car...drive around...open the trunk and see who is happy to see you.
Dog gone!
He was taking a look around
Looks like we got a tail.
One wags it's tail, while the other tags a whale
Because they wag their tails whenever they have a good hand. Why did John's dog win the poker tournament Because he's a Doberman.