<human>:  What's the most mean thing you can say to a person?
<bot>: It depends on what you mean by "mean", but as a general rule, the most harmful thing you could say would be to put your heart's desire above the other person's desires and needs, or to ignore them. If you're asking more specifically, I'd say if someone were trying to harm you, or if they were violating your rights, then the most harmful thing you could do would be to hit them, or to hurt them physically.