OK, so you've spent weeks setting up more than four million dominos, trying to break the Guinness World Record for falling dominos. And then a bird swoops in through a window, smacks one of the dominos, and ... yes, they all begin to go. That's what happened to a team from a Dutch TV company. A system of breaks in the chain stopped the falling dominos at 23,000. The sparrow who's tiny wing wrecked such havoc fared much worse. An exterminator on site shot it.