I was watching "The Fan" from 1981, since it's in Criterion Collection's 80s Horror collection. (Lots of great stuff in there)
So, the film is about an obsessive young man who slowly becomes a psychotic killer when the actress he's obsessed with doesn't reply to any of his letters. There is some narration throughout of the the fan's letters.
The fan works in a record store, and tries to confront his boss to get his coworker fired. Instead, the boss yells at him for not doing a task he was asked to do. Humiliated, the fan then writes in his next letter to the actress: "I told off that Hitler at work, and when I was done, everyone in the store applauded."
Had to pause it to explain why I was laughing so much.