I had one ,many years ago when a driver asked a 13 year old girl to invite him in for coffee. I had the dad shouting down the phone demanding sacking . I said I would properly investigate but that wasn't enough he wanted immediate sacking on his say so!
I sat down with mum and daughter and went through the procedure of writing down the events on paper and submitting it to the council etc.
surprise surprise they wouldn't do it because then they would have to actually put their names to the complaint
Driver left after a stern talking to from me because he thought he was being unfairly treated even though there had been a previous complaint from another passenger and went to work elsewhere.
It was another 4 years before he lost his badge
Dad then went around the local pubs bad mouthing us for years
2 years later I came across the driver parked inside a school grounds where we used to do a school contract photographing children arriving at the school and the schools reaction we don't want to get involved you contact the police