THE Dog, as created, had a rigid tail, but after some centuries of
a cheerless existence, unappreciated by Man, who made him work for
his living, he implored the Creator to endow him with a wag.  This
being done he was able to dissemble his resentment with a sign of
affection, and the earth was his and the fulness thereof. 
Observing this, the Politician (an animal created later) petitioned
that a wag might be given him too.  As he was incaudate it was
conferred upon his chin, which he now wags with great profit and
gratification except when he is at his meals.