Thats because Guy Gibsons dog was called 'Nygger', indeed I used to be O i/c Nyggers grave when I was a first tourist on the Sqn. It really pisses me off the the mamby pamby pc brigade have had the film 'The Dambusters' edited so that the dog is now called 'Boy' just in case historical fact should upset some delicate flower!!!!!!!!
PS I had to incorrectly spell it because even PPrune censors historical fact