Where I live, there is a certain Tennis Dad who enjoys giving tennis lessons and organizing tennis socials for kids not only in the school his son is enrolled at, but at all schools. Now one day, after holding a free tennis lesson for some JV kids, he was approached by the town pro (This pro was sanctioned as the only pro allowed to teach FOR MONEY on public courts in the city). The pro told him this: NO more bringing a ball basket to teach kids on ANY public court NO more tennis socials organized Is this legal? I see this as a way to monopolize the kids into being taught by him. He has already gotten rid of every other Pro in town somehow, including most of the country club ones.