Everytime I think of Interesting Times, this image involuntarily pops up in front of my eyes. I guess this in-joke is rather difficult to explain, but I hope you PTerry-fans out there are going to appreciate it... ;-D

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"Occasionally he'd see a man standing ankle-deep in a flooded field holding a water buffalo on the end of a length of string. The buffalo grazed and occasionally moved its bowels. The man held the string. It seemed to be his entire goal and occupation in life."

(taken from "Interesting Times" by Terry Pratchett, page 91 A.E.)