Originally Posted by
2manybikes
If it looks like it will happen again, just stop in the correct lane position. Stop early so he has plenty of time to react. If he gets close, and it is not clear if he will hit you, scream as loud as you can. I like to yell " heads up" if someone still does not get it soon enough, I yell "wake up". Not good, some people may get mad. But I don't care, it's better than a collision.
I yell "please pay attention" and people usually don't get mad at that. The bright lights and bright clothes make it hard to miss me when others are paying the slightest bit of attention.