I've always tried to use firmness, common sense and kindness when dealing with problems involving other people. Being older helps, as one has more confidence than when young. But the Police are, as you say, in a difficult position. They have a duty to the public at large, and can't risk a situation getting dangerously out of hand.

My husband was completely amazed to see on TV crime documentaries that UK officers always ensure an arrested person doesn't bump their head when being put into a Police car. In his country of birth, they'd be more likely to bash him over the head with their batons, or kick him senseless!