You know, the puns on JR's name were so common back than ("San Francisco Cookin' with Rice" kind of thing), and you have to wonder if Crab's will lend itself to that, though I can't see it as a natural. "Crab Boils Over" doesn't quite work. Of course, if we can get Vernon involved, the writers could have a blast. How about, "49ers Excited by VD and Crabs"?