[yial]

I don’t think what you’re describing is quite the same thing.

At least I hope not.

More concrete example:

He will be going 65 mph in slow lane. Come up on a car. (Left lane empty). Slam on his brakes. Follow them at 50 mph for 1-3 minutes <1 car length.

Pass, flooring it, if he stays in the left lane he’ll keep going until he now tail gates a car in front of him- usually with large speed variances.

The amount of traffic on the road doesn’t matter. It can be 3 cars and he will drive this way.

I’m not talking about trying to drive through major city rush hour traffic.