Running a skin game is a labor of love. It is time consuming and in some instances there is no love from the people who are winning, in some cases big sums. I have seen it all, from some who tip small or say thank you to those that tip nicely. While I agree that there is nothing that says a tip is required, anytime I won a skin, which isn’t very often, I have always tiped 10% to the individual who is giving of his time to do a service. I appreciate anyone who takes the time to run the game and they deserve, in my opinion, to be tipped for providing that service.