This article from the Sydney Morning Herald about World Usability Day starts off absolutely hilarious:

> The managers of Amsterdam's Schiphol Airport faced a difficult problem a few years ago. They were having to spend a fortune cleaning the men's toilets because the aim of Dutch men was so poor.

> "They hired some guys who sat in the urinals for several weeks, just observing," says Ash Donaldson. "They noticed that if there was a cigarette butt or a fly in the urinal men would aim at it. So they etched the shape of a fly into each urinal - and that reduced the cleaning bill by 80 per cent."

I bet the conducting that ethnographic study was a lot of fun! ;)

Read the full article:

* http://tinyurl.com/acglm