Haunted houses require 40-page waiver, insurance, drug test

 A haunted house that promises an extreme experience that can last up to 10 hours requires participants to be medically cleared by a doctor and sign a 40-p waiver.  McKamey Mar experiences in Summertown, Tennessee, and Huntsville, Alabama, also require visitors to be at least 18, insured, and pass a background check and drug test. WFLA-TV reports that owner Russ McKamey offers thousands of dollars to anyone who completes tour, but says one ever has. He records each tour on video — for his own protection he says — and n posts m online, showing m quitting in humiliation. It costs nearly thing to enter: Just a bag of dog food. website warns of physically demanding environments, but McKamey says mar is a mental game.