I don't know if that's true. Comedians are notoriously unhappy and it's fairly well known that suffering can lead to comedy and the class clown is hiding their inner pain. cf: Catch-22, interviews with comedians.
I was talking about genuine, spontaneous humor. Not in a setting where you're acting and where others know you're acting. Not when there's an audience. Spontaneously funny about bad things happening in real-time, in real-life, in a personal setting.
Even really good unhappy comedians would have a hard time with that one.
Wow you sure know a lot of things. Can I subscribe to your newsletter?