Crab Cake Stuffed Grilled Lobster

8 1-1 1/4 pound Lobsters (live, uncooked)1 pound crab meat1/4 cup mayonnaise1/8 cup mustard1 sleeve crackers (Ritz or other brand)1/2 cup chopped onion1/2 cup chopped red pepperfresh garlicLots of Butterchives (optional) Main...