Everybody knows it's good to take the stairs because you get more exercise. But since when do we do anything because it's good for us?
Then again, what if there were a fun factor? Would people abandon the escalator to walk up the steps under their own power if it made them laugh and smile?
The people behind The Fun Theory put that question to the test.
(And in case you're wondering, we're not endorsing the sponsor of this project. We just like the idea...and the video!)