Behind the scenes at CrossFit HQ

If you thought CrossFit creator Greg Glassman was outrageous in his 60 Minutes interview, wait until you meet his corporate mascot, "Pukie the Clown"

"When you see Greg Glassman, if you're expecting a super-fit guy with a big neck and huge biceps and ripped abs, he's about 180 degrees away from that," Sharyn Alfonsi says about the creator of CrossFit, a workout program that mixes elements of weightlifting, calisthenics and gymnastics.

Glassman, profiled this week on 60 Minutes, "doesn't look like the guy who should be behind the biggest fitness empire in the world right now," Alfonsi says.

"[Glassman] doesn't look like the guy who should be behind the biggest fitness empire in the world right now."

But, as seen in the above video, Glassman is a lot like the workout program he created -- unpredictable, uncompromising, and raw. Take his corporate mascot, Pukie the Clown, for example. When critics said CrossFit makes people vomit, Glassman embraced the notion.

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Greg Glassman

CBS News

This video was originally published on May 10, 2015.