I doubt it. If the window is in a position to act as a guillotine, you have bigger things to worry about. Also, the window will break more easily if it’s halfway down, because it will act as a cantilever instead of as a simply supported beam. If my head is what’s going to be breaking the window, I’d want it partially down, personally.
True, but those have a switch inside the door jam that allows you to turn it off.