Watch Hazardous History with Henry Winkler

It's a mind-blowing, bone-rattling trip through the toys of yesteryear that remind us of a time when childhood was wilder, freer, and far more hazardous.

Remember when looking your best meant risking life and limb? From dentures that could explode at the dinner table and stiff shirt collars that strangled us to death, the pursuit of the perfect look once pushed us to surprisingly dangerous lengths.

In the season two premiere, viewers will be taken back in time to explore Killer Crazes. Remember when "everybody's doing it" was reason enough to dive in headfirst? From gravity-defying flagpole sitting and phone booth cramming, to pet skunks and goldfish gulpers, we reveal the wildest crazes that once swept the nation. These over-the-top obsessions were risky, and impossible to resist. It's a jaw-dropping, head-shaking trip back to the fads that pushed the limits and made our hazardous history must-see mayhem.