I'm going to go with Jackie DiNorscio from the movie Find Me Guilty (played by Vin Diesel with hair!). He represents himself in court, and the movie is based on a real story, but I'm sure that counts, lol. Anyways, he tells the most inappropriate jokes and stories during the court. It's a pretty good movie, and I don't say that often (probably because I don't watch movies often, lol).

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