I don't like it when the escort attempts to dictate the speed of things (e.g. trying to initiate sex twenty minutes into an hour appointment). I like to take my time (five minutes kissing/hugging/brushing her hair, five minutes kissing her body, ten minutes sucking breasts, thirty minutes eating pussy/her sitting on my face and ten minutes sex) and if I've paid for an hour, then I'd like to use the hour the way I intended.
Of course, I understand that there could be a variety of reasons for this (not in the mood, ill etc).