Why does saying ((calm down)) make an angry person more angry?

In my opinion, because they just want you to calm down and aren't willing to talk with you about it.
At least that's how I feel.
*shrugs*

Because they don't want to be told what to do.

well, when my mom tells me to calm down, i calm down.

Because how /dare/ you imply that my anger means that I'm not in complete control.

Whenever I get angry at my man, he just tells me he loves me and makes me food until I calm down.

Because rebel. Rebel is a part of human nature.