SEABROOK, N.H. — Sometimes Catrina Costello would allegedly yell obscenities and stare at Stephen VanDalinda and his wife, Erin. Other times she would shine a green laser beam toward them or threaten them with her two pit bills. The feud between the two families, according to neighbours and court records, goes back several years. It came to head Wednesday night when Costello allegedly ran the couple down as they walked their dog on a quiet, two-lane street near their house.