You wouldn’t like Ron Paul when he’s grouchy.

Rep. Ron Paul (R-Tex.) likes his daily workouts. (Laura Segall/Getty Images)

STOSSEL: I really admire your stamina to campaign away. I want to tell the audience that the last time you were here, I asked you if you were tired of this, and you said the only thing you minded is you didn’t get to exercise as often as you like to. And I asked you, “How often do you like to exercise?”

PAUL: Twice a day. I like to walk in the morning and ride a bike in the afternoon. And when I don’t get my adequate amount of exercise, I get very grouchy, so I try to work it in all the time.”