We normally advocate wearing a helmet when biking in case you get hit by a car. In this case the guy on the bottom of this double-decker bicycle should wear a helmet to avoid a boot to the head. When we started watching the video after the break we thought that [James] had just built a really really high bike. Not the case, he built an over-under tandem bicycle. What’s more outrageous? Check out that killer kick-stand twenty seconds into the clip.