This scene from the 1932 Marx Bros. film, Horse Feathers, cracks me up. Goucho is playing his guitar in a wood canvas canoe (can anyone identify the model?) while his date "paddles" the canoe. His guitar playing is real, not dubbed, and is more than passable. But her paddling technique is in the running for the worst stroke ever filmed! A lot of jokes here, but the best in my opinion is when they are discussing canoe safety and Groucho quips he wanted "a flat bottom, but the girl in the boathouse didn't have one."