The first time I found myself behind one of those three-wheeled Piaggio scooters on the freeway, the overall visual looked like the scooter rider was dragging his feet. It wasn't until I passed him, thinking he must be in some sort of danger, that I realized that what I thought were legs were the two front forks of the scooter.
Imagine following this thing in traffic and wondering what happened to the poor motorcycle rider after he slammed into the back of a van?