Who's on First, the Crustacean Version

In the car on the way home from piano…

Rilla: Crap!

Rose and Bean (aghast): What???

Rilla, pointing at picture on restaurant sign: Red crap.

Rose: CRAB. You mean CRAB.

Rilla: Right, crap.

Rose: No, really!! It's CRAB.

Beanie: Huh? I thought it was Red Lobster.