In Blotto (http://www.imdb.com/title/tt0020698/) Stan and Ollie have sneaked off to a club with a bottle of Stan's wife's liquor and think that they are drunk - except that she knew what they were going to do and substituted cold tea for the contents of the bottle. The fit of laughter starts just after she gets to the club carrying a big gun (I'm watching it now to check it out).