LOS ANGELES, CA - OCTOBER 27: Atmosphere at the Rock 'n' Roll Los Angeles Halloween Half-Marathon benefitting The ASPCA at L.A. LIVE on October 27, 2013 in Los Angeles, California. (Photo by Angela Weiss/Getty Images for ASPCA) (2013 Getty Images)
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SAN FRANCISCO - OCTOBER 31: A dog named Ringo wears a wig as part of a mermaid costume during the first annual "Howl-o-ween" dog costume contest October 31, 2007 in San Francisco, California. The first annual costume contest for dogs benefits the Society for the Prevention of the Cruelty of Animals. (Photo by Justin Sullivan/Getty Images) (2007 Getty Images)
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Dominic Croyle,3, of South Fork, Pa., with his dog "Taz" takes part in the annual Halloween parade in downtown Johnstown, Pa., Thurs., Oct.24, 2013. (AP)
NEW YORK - OCTOBER 26: Dog "Vanilla" is dressed as a sunflower at the 13th annual Dog Halloween Parade in Tompkins Square Park October 26, 2003 in New York City. (Photo by Mario Tama/Getty Images) (2003 Getty Images)
Romeo, a 1-year-old Italian Greyhound owned by Jim and Laura Meyer, Noblesville, cruised into Klipsch Music Center in Noblesville, Ind., for an attempt at a world record for dogs in costume on Sunday, Oct. 27, 2013. The attempt, with 835 dressed-up doggies, fell short of the record of 1,326. (AP Photo/The Indianapolis Star, Charlie Nye)
Pooches of all shape, size and character prance in costume alongside their human companions, for the Fifth Annual Yappy Hour HOWL-o-Ween Bash at the Jacksonville, Fla., Landing Sunday Oct. 13, 2013. "Super Dog," Zoey, and "Batman," Boxer, stand guard over their owners Hanz Villanueva and Liz Cruz at the Yappy Hour HOWL-o-Ween Bash. (AP Photo/The Florida Times-Union, Christina Kelso)
Penny Lincoln Blake, a 10-month-old mini dachshund owned by Rachel Blake, Cicero, dressed as President Abraham Lincoln for a dog fest event at Klipsch Music Center in Noblesville, Ind., where dogs and their owners gathered for an attempt at a world record for dogs in costume on Sunday, Oct. 27, 2013. The attempt, with 835 dressed-up doggies, fell short of the record of 1,326. The event was sponsored by Hoosier Lottery. (AP Photo/The Indianapolis Star, Charlie Nye)
Mr. CB, a dog wearing a costume, takes part in a Halloween parade in Kawasaki, south of Tokyo, October 27, 2013. About 110,000 spectators turned up to watch the parade made out of 3,000 people dressed up in costumes, according to the organiser. REUTERS/Yuya Shino (JAPAN - Tags: ANIMALS SOCIETY)
A pet owner holds her dog which is dressed in a headless costume during the Scaredy Cats and Dogs Halloween costume competition at Eastwood mall in Quezon city, metro Manila October 26, 2013. According to an official from the organiser Philippine Animal Welfare Society (PAWS), the annual event, which had at least one hundred competitors who joined with their pets, aimed to give pet owners a chance to bond with their pets and experience Halloween together. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SOCIETY ANIMALS)
Dogs in costume wait to compete in the Surf City surf dog competition in Huntington Beach, California, September 29, 2013. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT ANIMALS SOCIETY)
Two dogs in costume share a board during the Surf City surf dog competition in Huntington Beach, California, September 29, 2013. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT ANIMALS SOCIETY)
NEW YORK - OCTOBER 26: Dog Harley is dressed as a reindeer during the 18th annual Tompkins Square Halloween Dog Parade October 26, 2008 in New York City. The event is the largest dog Halloween party in the United States with an annual attendance of over 400 costumed dogs. (Photo by Mario Tama/Getty Images) (2008 Getty Images)