What I have seen work, get a group of kids that want to play after school each day before 5 and show the owner your interest and also the possible dollar number projection and what he stands to make each month then multiply that times 12 months and he may be willing to listen. Another angle is to tell him your parents approve and signed an agreement letting you and your friends in, and if you screw up at home, she can call the room and have you sit out for a predetermined time and vice versa if your outta line in the room, also you could have the room owner teach you etiquette of equipment and the rules, better than hanging out at the mall. This will HELP the room owners long term business grow $$$$$$. Now if its a small room and all the tables are being used, good luck, but never hurts to 'ask'. Hope this helps.