NEW YORK - On Saturday afternoon at Washington Square Park, I saw the strangest sight ever. Hundreds of dachshunds had gathered, with their owners, for the biannual Dachshund Fest, the largest "convention" of hot-dog-shaped dogs in the world. As I approached the park, dozens of dachshunds were getting out of cabs, dressed in their Sunday best. "Jesus, what the hell was that?" I said, jumping back. It wouldn't be the last time I'd feel a surprise lick on my ankle. Who knew there were so many sausage-shaped canines? "This is not a dog show," said Adrian Milton, who organized this,...