Actually this does work.
I always ensure I give a great service, but when you don't want to meet them again, shit service works a treat - but would add this is rare as I meet mostly lovely guys! But there is always one!
I did have someone who told me he didn't rebook because I appeared to turn cold. Yes I did because when I engaged in his chat he'd over stay significantly, even turning back at the door to ask my advice on his business well after time. He also 'left' his money in the car on one booking, extended on promise he had the cash on him then at the end told me he hadn't and would have to go get it. Which he did but next time I knew I had to be firm, and avoid being dragged in.
He later asked me advice about another Escort who had ripped him off, as a result of his over staying. At that point he told me he'd not booked me because of the perceived change.
So yes I'll instil boundaries but I don't believe in offering a poor service, clients are still customers and it's unprofessional not to mention stealing to purposely give them a rubbish time. As above I'll always tell someone if or when there's a problem, explaining it's affecting how relaxed I can be with them.