The Laughing Fish
No one really knows the reasons for Joker’s crimes. Sometimes, you wonder if he even knows what he’s doing himself. However, one time, he committed a crime that bordered on absolute genius. Basically, he poisoned the river of Gotham and turned the fish into grotesque reflections of him.
Now, this wasn’t to kill people, which is his normal modus operandi. No, he did this in order to copyright the fish and collect a percentage of the sales. When a copyright clerk told him he can’t really do that, Joker spent the rest of his time trying to kill him as revenge. Typical.
This story was so popular and successful that it received the animated treatment on an episode of Batman: The Animated Series, and is constantly cited as one of the best of the series. “The Laughing Fish” might not be the worst or craziest thing that the green-haired psychopath has ever done, but it’s certainly one of the funniest.