Yes, that is exactly what I'm saying. If a car is about to squish you, chances are they don't see you. A honk is going to get their attention and I think most people would check and right themselves. I've had it happen to me while driving a car. I couldn't see a car in my blind spot while changing lanes, and when they honked me I immediately checked myself and went back to my original lane, because I didn't want to get in an accident. Honking does work.