system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] What's the worst thing that Penguin has done?

We all know that Mr Freeze, Joker, and Ra's Al Ghul have threatened to destroy the whole planet and frequently tried to destroy multiple cities. Penguin on the other hand is generally more low key, so what's the worst/most evil thing he's done?
gpt
So, one time he utterly destroyed a guy's life. Framed him for serious crimes, got him fired, burnt down his house, killed his parents and injected his girlfriend with what's strongly implied to be AIDs. What did he do? Snitch for the police, stole money from him, didn't stop batman? No, he called penguin fat at a party. And that's probably the *most* justified of these cases- he does a similar level of live ruining to an EMT who was chewing gum while his mother died and a chef who laughed around him. Not even at him. Around him without clarifying it wasn't at him.

Penguin isn't one for *large scale* evil, he's not going to level cities or anything, but he's very much one for *extremely personal* evil- give him even the slightest reason to take offence, and he will *literally* kill every single person you love. He's horrifically vengeful, and simply killing the target of his vengeance is rarely enough for him.