But don't cough or sneeze or you might miss me. David Boeri's Radio Boston show tonight is about violence in Boston, 9-10 p.m., 90.9 FM. Even if I weren't on it to talk about my obsession with violent crime statistics (about halfway into the show), I'd still recommend you listen - Boeri spent two weeks living on Norfolk Street in Dorchester (in an apartment with six locks on the door) and interviews both perpetrators and victims of crime. He also managed to keep me from babbling too much. The show will be repeated on Sunday at 8 p.m.