What was the Richard Pryor movie when his character had a nervous breakdown?

I fondly remember a scene of Richard Pryor's where something had happened and in response he was trying to control a nervous breakdown from happeneing. He went something like... That's It! I've had it! (He made a few oh, ah, words, like do say anymore or don't touch him) He was almost at the edge of the breakdown. He was very funny in this film. This was a part of Richard Pryor's character in films, so I am sure their are several films were he is like this, but there is one film on my mind specifically. What is the title of it? First person with correct answer gets all the points or is able to elaborate the scene. I will put this question in 5 topics.