Jack Rebney, the "Angriest Man in the World" tries to shoot a Winnebago film and has a series of outbursts. As retaliation his crew saved the footage, and it surfaced 20 years later.
http://www.youtube.com/watch?v=vuSERHqzKwI
I guess what really happened was Rebeny memorized the dialogue in the order the film was to be shown when finalized, little did he know the producers would shoot out of order. They shot all the scenes in "location a" all at once so they didn't have to move their equipment around constantly. Rebeny should have known better though.