system
Given the following post, respond as if you're commenting on Reddit:
human
[Dr. Who] The Doctor once said: "Good men don't need rules. Today's not the day to find out why I have so many." What did he mean by that?
gpt
A truly "good man" will always do what's right naturally, instinctively, and without much thought. Such a man doesn't need to be reminded what's right and wrong... Even if emotionally driven.

It's a quip to suggest that he's not such a good man and might just do what's not-so- "right" if provoked... It serves as a warning.