There is one.
When someone CUTS YOU OFF
and then SLOWS DOWN.
I am coming home from an interview, going south in the highway, in the middle lane, going 70. Perfect 5 miles over.
This Jack-A behind me is RIDING me, then finally swerves into the far lane (which by the way NO ONE was in which is why I didn't move over to let him pass me) and then CUTS IN FRONT ON ME
What- 2 inches from my car?
AND SLOWS DOWN TO 65.
I about had a conniption in my car.