Played mens doubles indoors last night, against an opponent who often quick serves his second serve. I've known him for years and know his pattern. It's all gamesmanship. But, when I don't play the quick second serve and ask it be retaken, he wants first serve again. I think he does it just to get his first serve again if he can't entice you to swing away at a serve you weren't ready for. What is he entitled to?