When a New Yorker?

Yeah, I mean, at what point can one call oneself a New Yorker? Is it only after having lived here a some unknown amount of time that one can honestly call themselves a New Yorker? That seems lame. Maybe instead it's after one has been completely infiltrated by the city. That is to say, when one has gone directly from work to the OTB. Betting on the ponies, natch!