You've seen the typical man-on-the-street survey on comedy shows, talk shows, and even documentaries. It's when a single question is asked of passersby while a camera is rolling.
Sometimes, the responses are humorous. Other times, they are downright ignorant.
Take the responses given in the well-known documentary, "Super Size Me." When Morgan Spurlock asks for the definition of a calorie, no one gets even remotely close to the correct answer. But there was no humor in the answers, just ignorance.