Yesterday, while biking home from work, I passed a man carrying a bike on the back of his bike. He was riding along with no aparent difficulty, but it was a sight to see.
He had a small cargo rack on the back of his bicycle; the sort that students use to carry books. The second bicycle was lying across the rack, held down with bungee cords. It was percariously balanced, and stuck out awkwardly on both sides of him, yet it worked. I couldn't help but stare as I passed by.