Mythbusters visited Portland, Oregon in 2012. I got up on stage with Adam and Jamie, and about 7 others all together. It was the start of the show. They were talking about science and hypotheses and such. Six of us got into a tug-of-war with Jamie. He wasn't breaking a sweat while all of us struggled against him. Eventually, we gave up.

Moral of the story was to always challenge your assumptions. His side of the rope was tied down to the floor.