....dressed as college professors, no less!
On a separate note, movie theatres were forced to run less grossing movies in order to get the Three Stooges shorts. Yes, the studio blackmailed the theatre owners.
On another separate note, the Three Stooges are featured in 1964's, "It's a Mad, Mad, Mad, Mad World". You see them shuffle about the rear and side of the aerial ladder fire truck. However, that film was on TV recently and that 'last big scene' shows 3 guys standing on the truck with their backs to the camera. You can see a heavy guy (Joe DiRita?), a guy with Larry hair exposed under his helmet (Larry Fine?) and the man who could be Moe Howard is all but indiscernible. They were under contact with Columbia. The movie making entity must've wanted to avoid paying royalties.