Billy Bob, non-Gricean
Billy Bob Thornton gave a bizarre interview today on CBC Radio that could serve as a case study for Paul Grice's conversational maxims and how to violate them. Billy Bob was there with his band the Boxmasters, but he was upset that the host Jian Ghomeshi mentioned his acting career in the introduction to the segment. He proceeded to take a passive-aggressive approach to answering Ghomeshi's questions, finding the most uncooperative possible responses.
Right off the bat, when asked by Ghomeshi about the formation of the band, Billy Bob flouts the Maxim of Quality ("be truthful") and the Maxim of Quantity ("be informative") by claiming that he doesn't know what Ghomeshi is talking about. Later Ghomeshi asks him about musical influences, and he gives a long, rambling recollection of the magazine Famous Monsters of Filmland, thus flouting the Maxim of Relevance ("be relevant") and the Maxim of Manner ("be clear"). It's truly a tour-de-force performance, sure to be appreciated by students of pragmatics everywhere.
https://www.youtube.com/watch?v=IJWS6qyy7bw