You could opt out of being in the phone book. I had to do this because a crazy woman who had had a teacher by the same name as me, in the same suburb as me, kept ringing me. First call she said, “Guess who this is?” Dunno. By the tenth call that first day she was yelling down the phone that I was a liar, asking me “Why are you being like this?!?” Because I was never your teacher! No caller id back then, so I had to keep right on answering. One time I picked up and shouted “FUCK OFF!” and yeah it was a work colleague, that was awkward.