Alan Abel formed a tongue-in-cheek crusade whose mission was to clothe all naked animals for the sake of decency. It was called S.I.N.A. or the Society for the Indecency to Naked Animals. The campaign slogan was "a nude horse is a rude horse."

Alan and his wife, Jeanne, would go out picketing together. They traveled to the White House and held signs out front pleading with the Kennedys to cover their horse's private parts.

Wearing a deadpan expression, Abel went on numerous television and radio shows to promote S.I.N.A. He hired his friend, Buck Henry, to play the part of S.I.N.A.'s president, G. Clifford Prout, and together they duped such major TV programs as "The Tonight Show," the "Today Show" and the "CBS Evening News" with Walter Cronkite.

The media frenzy carried over to the public. While some became outraged, others eagerly joined in on the march to clothe every horse, cat, dog and cow.

S.I.N.A. was actually a satirical commentary on censorship. It poked fun at the true moral maniacs who were banning books and records during that time period.

In 1963, five years after it began, Time Magazine finally blew the whistle on the S.I.N.A. campaign.

In 2000, the S.I.N.A. hoax was honored in Time Life's Century of Change.