Pat Wright loves ferrets — a forbidden love in California, where owning the animals has been illegal since 1933. The state's complex ecosystem and ferrets' outlaw reputation as chicken killers make the weasel-like creature verboten here and in Hawaii. Like many ferret owners whose malfeasance gets reported to the Department of Fish and Wildlife, Wright says he's paid a high price for his pets. He's served 17 days in a maximum security prison, performed 300 hours of community service, and shouldered civil lawsuits, all because he refuses to quit his decades-long crusade to grant ferrets the same legal standing as...