“The government always used to say, ‘We don’t know the real bad effects of marijuana. We’ve never been able to test it,'” Tommy Chong says in the perma-high drawl that made him a counterculture legend as half of Cheech and Chong. “Well, I’m a walking guinea pig. I’ve been testing it for well over 50 years. I came in fifth onDancing With the Stars at 76. This old stoner waltzed right by professional athletes because of the marijuana.”