Net? No. I think for every driver that doesn't yield, I get another that will yield when they blatantly have the right of way. Especially drivers on the cell phone who will just stop. I mean right in the middle of an intesection. They got the green light, just go. That's it! I pretty much don't shout or say anything when I ride. If I do, it's usually "Just go!".
In all, I think my biggest problem with cagers is when they do a stupid move or misjudge, they compound the problem by slowing down or stopping in my path. Sometimes they will even say they're sorry. They need to clear the scene before they apologize. I saw the left hook coming, I aimed for the rear of the car, and if they kept going I wouldn't have to break stride and there would be no problems. But they stop. Right in front of me. "Just go!" When I'm about to t-bone a car I really am not concerned with the social atonement norms. If they left the area of where our paths converge as quick as they entered the area, there would be no problem. Geeze, that's what gets me.