What's the difference between a street trader and a dachshund ?

A street trader bawls out his wares on the pavement (US : sidewalk), and a dachshund doesn't.

What's the difference between a seagull and a diarrhetic pup ?

A seagull flits all over the shore, and the other one doesn't.

The difference between True Love and Dubya ?

True Love is a Cupid's stunt, and Dubya isn't.

I'll get me Barbour . . .