Susan, Old people are old, and sometimes they are dodery, and this includes they way that they drive.
How do you justify this blokes actions, he is a menace on the road, but his actions are purely intentional.
There is no way in a million years that if i was a shop keeper in Marple that I would employ a person like this knowingly, you may as well bite the hand that feeds you as far as customers are concerned, as I for one, will never enter ##### again, no way!! They have lost me as a customer, and one less customer is another businesses gain!!