If you have a passenger so out of control it tries to break a window, who knows what other actions they will take when their attempt to kill other passengers pr

If you have a passenger so out of control it tries to break a window, who knows what other actions they will take when their attempt to kill other passengers proves fruitless? Duct tape the hell out of those loons, let the psychiatrist deal with them on landing. Add them to the do-not-fly list while you're at it.