unless there are provisions in the rules of the league/tournament for more than 1 lane courtesy, all they will get from me is 1 lane. I don't care how big they are or how bad they think they are or how much they yell, that's all they will get. as a matter of fact, if they want to push the situation, I will try to time my turn to bowl so that I am there ready to extend 1 lane of courtesy to them every time they get up to bowl. maybe if they don't like it they can take a blind score for the rest of the night and go home.