I've had so many hostile encounters saying something to these people that I've surrendered. You can't fight every fight and there's just no win. Two weeks back I had a wrong way bike lane rider play chicken with me. My general strategy with the salmon is to ride dead center where they want to be, make eye contact and force them out of my area. Most know they're wrong, so they pull off to the side. Not this guy. He wasn't moving, I wasn't moving and we both eventually pulled off at the last moment. Mr. Classy screamed some things you can't say in PG-13 movies. I was pissed off (I do have a quick fuse and generally don't suffer morons)and yelled back (which was foolish, there really is no win in this situation). He stopped to initiate a more serious confrontation and I did the math:

My bike is worth 10-20x what his is worth. If mine is damaged, I have a substantial loss. If his is damaged, he can replace it at a dump. If I get into a fight, I could be arrrested, injured, miss work...etc. I'd have to deal with my wife critiquing my stupidity. He didn't look like he'd be missing work the next day. In other words, I had more to lose, there was no win and it wasn't worth it. I rode away wishing I'd just pulled over to let the moron by.

The idiots win, until they thin themselves out of the genepool and get hit by a car.