There was one of those programmes on the other day Neil ..ya' know like Police, Action, etc., can't remember which, but a lady was stopped (4 x 4 of course ..
) and the police would not let her proceed until she had stripped enough of the film off to give her better viewing. She couldn't manage it and had to send for her hubbie. The policeman explained couldn't help her as he may cause damage to the windows, and would be liable for this.
Can't remember whether she got fined or not.
Entwisi will probably know about the motor bike helmets Accymad.