Worldwide Crank Calls
I accidentally called Japan today instead of the local coffee shop. Skype makes all kinds of things possible. Try dialing the same number to every country and see what you get. I got variations on 'the number you have dialed is incorrect' in 4 different languages, and one busy signal. I think a little research is in order, the random dialing might not have potential to get enough hits. But regardless, look how globalization reduces transaction costs so that we can colonize the world with every cultural malady ever invented.