From March 1940: Snicker of the Month came the day Joan Crawford, heading back for an afternoon’s work after lunch on Strange Cargo, knocked at Clark Gable’s dressing room, with a bunch of green onions in her hand. As Clark poked his head out,s he handed him the onions with: “You’d better eat these, Clark, before that love scene we’re going to play. Because I ate some for lunch, and you may as well protect yourself.” Without an eyelash batting, Clark came back with: “Thanks, Joan, but never mind. I just had some garlic for lunch myself!” ___ New this week: Film page for It Started in Naples–64 down, 2…