Raven Guard duty
Legend has it that the British Monarchy will fall if the 6 Ravens who live in the tower of London were to leave.
With so much at stake you couldn't leave things to chance, so in the mid 1600's, King Charles II insisted that the birds by protected. Despite their protected status, some Ravens do misbehave. Raven George was dismissed for eating television aerials, and Raven Grog was last seen outside an East End pub. But fear not, secretly a couple of spares are always on hand.
In case you think I made all of the above up (sometimes a safe assumption with my stories), please visit www.hrp.org.uk/toweroflondon/stories/theravens