THE SOCIETY for the Protection of Cruelty to Animals is an old-line organization with an admirable mission, which is to protect helpless animals from suffering, neglect and abuse. Its mission wanders and its image suffers when it takes its eye off the ball and strays into fringe areas, such as campaigning against hunting or trying to stop a pig chase at a county fair. Recently the New Hampshire SPCA tried to get an injunction to halt a “pig scramble” scheduled, as is long-time tradition, for the Stratham Fair. A judge quickly denied the injunction, saying just cause had not...