so angry by someones behaviour, you were silenced into disbelief

Oh I've walked out of work meetings when that's happened !
And if I return I ask that it's recorded in the minutes.

Yes some people's behaviour can be absolutely infuriating.
Especially if they think what they're doing is perfectly acceptable when clearly it isn't.

Yes, I would step aside and think of the situation. And if both parties cools down, I would bring the issue up in a mature fashion.

Yeah. Depends

Yes