It is not a good thing to put people in a position where there is nothing they can do.

Usually there is something they can do, and it's a really bad thing for one and all. The situation previously not violent the cornered ones make violent. In the already violent situation, they create violence that is a breakthrough in its awfulness.

Sometimes the people who put other people in a position where there is "nothing they can do" are using their cleverness to do that.

When the cornered people explode, the clever people think it shows the essential badness and dumbness of the cornered people and nothing about them

Going "nyah, nyah, nyah" is never good, and if done in intense situations, it isn't safe. We live one life. We live inside each other's moods.