Back in the day- I'm thinking twenty-plus years ago- a number of the vendors made their availability very obvious. One of them was a juvenile ladyboy who, much to my acute embarrassment, one day plonked himself in the deck chair next to mine in the vain hope of an offer. Another was a cheerful young man who always seemed to make a beeline for me as soon as I arrived and would start discussing terms. In those days, my activities were limited to the evenings and nights and so he was unlucky. However, were he to turn-up at my door now....