Just reading through the post and comments again. It just made me remember of a client a few years ago, who had lots of excellent feedback from local ladies that I knew of. He had booked to my understanding a GFE session.
However when he turned up he kind of went into a sub role play which we had not discussed beforehand. Asking me if I had been a naughty girl and did I deserve to be punished. Not to digress too much, he wanted lots of oral and was very instructive. He didn't do much to bother me until he took his belt off, made a loop and tried to put it around my neck! I was immediately into no fucking way are you doing that! He was like, "oh I won't do anything to hurt you, the other girls don't mind". Looking back now I think he was testing to see what he could get away with, but the fact he just sprang it on me was very disrespectful.
Reading some of the other comments on here has made me think that no one should just go for your neck like that. If you know them fair enough but they could be testing what they can get away with!