system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] Has the Joker ever broke character?

The "Clown Prince of Crime" always seems to carry himself either with an uncaring mad aloofness or with the idea that he's just going to head to prison for a bit and then escape... but with all the crossovers and other anti-heroes and stuff that has happened in the Batman comics/games/etc, I can't help but wonder... has the Joker ever broke character? Like, has he ever faced someone that legit scared the hell out of him, or made him realize he bit off FAR more than he could chew?
gpt
Frank Castle AKA The Punisher.

Apparently, during a 90’s crossover, The Joker came face-to-face with Castle. What he didn’t realize was that this was decidedly *not* Batman, and Castle was *not* afraid to simply put a bullet in Joker’s brain. Batman had to save Joker, and Joker, for once in his life, took the situation seriously and ran. No laughing or quips, just pure terror. It’s probably the only time Joker was actually afraid for his life.