The name "Wynham" has been conjured up from Gulliver's Travels by Jonathan Swift. Part IV he visits Houyhnhnm, the land of the talking horses. They are the rulers while the deformed creatures that resemble human beings are called Yahoos.
This expression comes from a tradition in horse racing. Thought to have a calming effect on high-strung thoroughbreds, a goat was placed in the horse's stall on the night before the race. Unscrupulous opponents would then steal the goat in an effort to upset the horse and cause it to lose the race.