You let him know you are not to be toyed with, and it's your turn to be a twit. Pass with a vengeance, sneer, force him over. But suppose you lose control of your car, jump a curb and send the mailman into outer space. Picture his bag of letters floating to earth. Or suppose you rear end a truckload of live chickens.
Chickens burst through their crates, clucking and pecking in all directions.
The driver leaps from his truck, waves his fists and insults your mother. In the meantime, your headlights are broken, your radiator belches steam and you have a backseat full of chickens and feathers in your hair. Couldn't happen you declare. You are invincible. No, you are not.