Do you "break check" people? You know, tap/slam on your breaks when someone is following to closely, a subtle hint to back up.
It is probably not the most polite thing to do but then again better than showing them your birdie.
I gave someone the "check" this morning and I could hear my dad " Michele, you're going to wreck!" Yes, it is probably not a good practice but it was 8:00, OK 8:20, I wasn't in my best mood and I was convinced that the nose of her car was pecking my bumper. After a little love tap on my breaks ( I didn't do the "slam") the driver backed off.
I promise not to make this a habit.
Pioneer Day 2017
49 minutes ago