We all know Hong Kong sidewalks can be lethal in the rain - a million people crowding together wielding umbrellas can mean you need to keep an eye out, or you might get an eye poked out! If you're above 5ft tall, walking in central in the rain can be an exercise in ducking and weaving.
This "Polite Umbrella" therefore seems like the perfect Hong Kong invention. You can fold down one or both sides at once to avoid passers by. Shame it seems to just be a prototype currently - we would buy one immediately if it were for sale!
via A Cup of Jo