Look Dave, I can see you’re really upset about this. I honestly think you ought to sit down calmly, take a stress pill, and think things over.  — 2001, A Space Odyssey

There is a time to sit and think, and there is a time to act.  Once you’ve made up your mind, execute.  When someone has abused your trust or tried to harm you, their advice isn’t worth considering.  “Calm down.” is usually code for “Give me time to figure out how to screw you over again”.