About ten years ago I worked at a startup where things could get heated at times, though I doubt it's anywhere near as bad as what many people here are talking about.

I remember two instances pretty clearly: in one, the CEO and head of architecture were having a 1:1. The CEO got a bit shouty, and the head of architecture very calmly said, "Don't talk to me like that. If you do it again, I'm walking out the door and never coming back".

Unfortunately in another incident, with a different coworker and his boss, my coworker did get pissed enough at his boss' tone that he walked out of the conference room, slammed the door, left the building, and never came back.

This is all just toxic garbage. The people in power require that their employees "act professionally", but then feel free to heap verbal abuse on their people. Not ok in any situation. If you're unhappy enough with an employee's performance that you feel the need to yell at them, you either just have anger management issues and should see a therapist, or they're a bad employee, and you should step back, calm down, and after you're calm, fire them.

> Then my boss came in and asked me if I could build a client demo. After I responded sure, he said we needed it in 3 hours

This is why I never agree to anything until they tell me the deadline :-P