When one finds it necessary to slow down and look at the car pulled over to the side of the road, whether the reason being an accident, a cop pulling them over, their engine died, whatever. Either way, it's fucking annoying, because it causes unnecessary traffic.
Hey, what's with all this traffic?
I guarantee it's some dumbasses rubbernecking.
15 minutes later, they see a car pulled over on the side of the road, and the traffic suddenly gets better.