One example of a situation in which I found myself that fits what has been discussed:
I was on a night bus home and got into a conversation with a guy who made a comment about a book I had with me. I was happy to chat to him as was feeling happy and sociable, and thought that a conversation would do more to keep me awake than the book would.
As we were coming up to my stop, I told him that I would soon be getting off. He asked me if he could come home with me. I said no, I did not want that, it had been nice talking to him but I was going home alone. I was slightly annoyed, as I did not think that I had been giving out those sort of signals. As I got up to get off the bus, he leant forwards and tried to kiss me. I managed to turn my head so that he only got my cheek. I said again that I was not interested in him. As the bus drew into the stop, he got up to get off with me - he had previously told me that his stop was the end of the route. I said to him that there was no point getting off at the same stop as me as he was not coming home with me, but he did anyway.
Fortunately there was a taxi rank by the bus stop, so I was able to get a taxi home, and asked the driver to check no one was following, as the man had followed me until I was in the cab. I would have been very scared if I had had to walk home from the bus stop.
Now it is quite possible that he was just a 'cocky git' and not a rapist but in failing to respect my wishes and the boundaries of normal human respect, he had, to my mind, forfeited his right to be placed in the 'not likely to be a rapist' bracket. Why should I be obliged to be more generous in my opinion of him than he was in his treatment of me?