... - December 2, 2007 3:35 PM ET OMAHA, Neb. (AP) - The Nebraska Humane Society has called for a ban on Mexican rodeo events, saying... is the treasurer of the Omaha-based rodeo club Charros Las Amistad, which had performed ...Nebraska, Iowa and Kansas, He says the rodeo is a time-honored tradition similar to American rodeos. But the Humane Society claims the horse tripping and...