During the last week, encountered 5 cases of people driving with high beam on. Strangely enough, all 5 were ladies.
I did come down at the traffic lights and told 1 of them that they were driving with the high beam on. Guess what? She turn off her lights. I only realised when I the lights were green and I was driving off.
She did turn it on again after a while, high beam again.....