Asian gifting (and general social niceties) taken to a horticultural extreme:
http://www.bbc.co.uk/news/world-radio-and-tv-17352173
It's an interesting social phenomenon, but seriously, that technology and effort could be put to so much better use! If horticulturalists in Japan had only chosen to attempt, say, breeding better crop plants and alleviating hunger in the developing world, imagine all the good they could be doing. It reminds me a little of the way the Japanese electronics industry developed; for a long time, they were among the most reliable manufacturers of electronics in the world, and yet, they stuck to making things like televisions, and kitchen appliances, and little toy robot things. They innovated, of course, but it was mostly on a small scale -- how to make a better circuit board and the like -- rather than dreaming big, as big as they could have. And now, given the way the Japanese economy's looking, it might be just a little too late.
Anyhow, I don't know how that turned from "look at this interesting, slightly ridiculous cultural quirk" to "let's solve all the world's problems." But -- just look at all those melons in a row!