It's amazing what drivers will do.
I have dual headlights. I usually ride with one on even in the day. If I see a driver getting ready to pull out of a parking lot, many times I turn on both lights (just for a second). I KNOW they see me. They sometimes pull out anyway.
So then I have to ask myself: did they do that to be a butt hole or did they really not see my headlights, bright riding shirt, reflective leg band flapping from my handlebars and hear me yelling?
Yup! They are being jerks!