What I meant Zippy, in the context of the thread, is under what conditions will a lady who advertises DFK not provide it. In the YMMV sense it could be because of hygiene or other factors. I was suggesting that it would be nice to know what those factors are in advance of the session, so one could make an informed decision. In Victoria, ads often state YMMV for any element on a lady's menu. In this sense, the term mileage does not refer to how many customers a lady sees, rather it relates to the range of services the customer receives on a visit.