He almost said something impolite!
Because the story took place in the U.K. They drive on the wrong side of the road and they call the back end of a car "the boot".
Note to self: Always keep pen and paper in the car or in handbag. While I generally carry about a pen...not always paper...
I carry a bag of "Jolly Ranchers". Suck on one for a few seconds and stick it to the windshield.
I really care nothing for what others think. I will not smash their cars like they smash mine. Every time you go to a store someone smashes their door into mine. Fat people who can't take the time for anything but themselves. I have to get my car fixed every few years because people are so selfish.