My poor knowledge of Greek mythology has always been my Archilles' elbow...

A careful shopper in the fish market asked as to the freshness of the fish she was considering.

"Fresh? Why this fish took its last breath just as you entered the market," replied the manager.

The shopper, who had done business here before indicated, "And what a breath it has."

What did the cobbler say when a cat wondered into his shop?

SHOE!

A not so bright young lady in the pet shop ask about buying a gold fish.

The salesperson ask if she needed an aquarium.

Her reply was, "I don't care what sign it is."