I spent the day chasing buses, walking, and talking to car salesmen. Most were polite and helpful. They treated me with dignity and respect for my intelligence. That made dealing with the lone idiot easier to bear. He attempted to tell me how to buy a car. When I didn't acquiesce he tried intimidation.
Poor man, he had no idea that would not work. His superiors will be hearing from me and I will be buying a car from his competitor. I didn't respond to his insults, but they will come back to haunt him when I inform his boss. Moral: Let someone else get even for you, never waste your own energy.