What happened to traffic rules?

I have had it. This morning I stopped at Semanski and Roosevelt. A vehicle approached on my left. I started to proceed through the intersection when, lo and behold, the other driver doesn't even stop and blasts through in front of me! I stopped first and was on his right so I had the right of way. He didn't even stop and was talking on his phone to boot! His companion looked at me all shocked. Hello? Anybody home? I have been noticing this more and more at Enumclaw's four way intersections over the past years. Then there are people who wave you on thinking they are doing you a favor. This is not a place for courtesy - that could get you into an accident, which I am certain you do not want. I just don't get it. Didn't you learn right-of-way? If you didn't, please look it up on the DOL website!