Have caution gents!

Keep it professional, keep it flexible, keep the distance. Never forget that your're just a meal ticket.

Exactly.

I know there are reportedly examples where the professional relationship blossomed into something long-lasting, but I'm certain that's the very rare exception.

From what I've read, attempts to take these things beyond a professional transaction usually end badly.

My view is that you should enjoy the fantasy during your visit but you must come back to Earth once the session ends.
 
There are whack jobs that come in both sexes; ask any woman about her horror stories. There is always the possibility someone will go ballistic on you. Even though you think you know them. When I have extended after hour social activities to clients I get taken advantage of so I don't do it anymore. I think if you are playing the field with several women (friends with benefits) whether industry related or not, someone is bound to find out and get hurt. How they manifest that hurt will depend on that individual but you are playing wth fire.
 
I used to frequent an Asian restaurant where the owner and staff had limited English language skills. They had takeout as well as table service. When you walked in, the first thing they wouud say is: You come? You go?
I thought that would make an excellent slogan for an SP even if she spoke English. :))