I’ve only ever known chairs flung across the room in times of extreme emotional stress, usually from a student with autism who finds it all too much. It certainly has never been part of my daily life as a teacher.
And sometimes people can be unhelpful. That’s not quite the same thing as provoking.
But if (say) you have a child who comes storming in, glaring at everybody with flashing eyes and completely ignores you when you ask him to remove his coat, then there are ways of managing that situation.
I say, ‘Have you had a bad day, James?’ in a kind tone of voice. Honestly, it works. They listen to you because they feel you are ‘listening’ to them. Even if they just shrug, they mellow.
Then I might say something like ‘listen, I don’t want to give you a hard time, but it looks bad on me if someone comes in and you’re wearing your coat. Could you take it off for me, please?’
It’s so much better than the ‘old’ way which is ‘take your coat off james’ constantly which gets James steadily more and more agitated and could, depending on who James is and what happened before, lead to chair throwing. That’s not saying that it’s the fault of individual teachers if James does throw a chair. Just that there are ways of managing and diffusing and responding to situations that don’t lead to confrontation and hostility.