Edgar Kennedy(1890-1948)

As a character actor he rarely smiled on-screen, but in real life he was jovial and friendly and would talk to fans as though they were best friends.

It's a cinch to steal a scene or crab an act if you know the trick in the trade, but it isn't done any more and for very good reasons -- the director is wise to you and reshoots the scene, or it spoils the scene, and nobody goes anywhere. But it's a marvelous stunt to get back at a guy if you don't like him, or you think he's double-crossing you.