Back in the late '80s and early '90s, Marc Summers was the original host of the messy children's game show "Double Dare" on Nickelodeon. For more than 500 episodes, he was surrounded by sloppy physical challenges, green slime and an infamously chaotic, often slippery obstacle course. But several years after the show ended, Summers made a stunning admission on a 1997 "Oprah Show": He has OCD.
"I never knew what OCD was. I just thought, 'There's got to be something wrong with me. Am I crazy?'" Summer said back then. "And If you watch the first 65 episodes [of 'Double Dare'], I never got a drop on me."