The 4 Way Stop

I don't understand why the 4 way stop is so difficult for some drivers to understand. You approach, stop, go when it's your turn. You see when you get there if cars are waiting to go. If they are, they go before you do. You go after the cars that were there when you got there have gone. Why do some drivers sit there and wait forever? Just go! If you're unsure, motion the person you're waiting on to go ahead. And for Pete's sake, if you're going to turn use your blinker! Don't give me the "wtf" look when I'm going and you decide to turn WITHOUT letting anyone know.

While I am on the subject, when you approach an intersection and the traffic signal is out, you treat the intersection like a 4 way stop. When the car in front of you goes, that doesn't mean you can too and the next 10 behind you can go as well. You treat it like a 4 way! But that in itself might explain it. It's the ones that can't get the grasp of the 4 way stop down that screw up the traffic signal out rules. It just amazes me.