Telstra have been running an advert [^] that tickles my sense of humour, and seems more than a little appropriate for this site.
Little Kid: Dad, why did they build the Great Wall of China.
Dad: Well that was in the time of the Emperor Nasi Goreng, they built it to keep the rabbits out. There were too many rabbits in China.
There is a wonderful kick at the end with the poor kid in school just about to start a presentation about the Great Wall of China.
This ad now has it’s own section in Wikipedia [^] on the Wall. The Beaconsfield Institute of Sinology has gone on to detail [^] the life of the Emperor and the history of the plague of angorra rabbits.