Surely it's possible to identify the culprit from White Waltham isn't it?
Anybody taking off from there should no better, and deserves a severe kicking IMHO.
Mind you, I did hear a story about an elderly bloke on his last ever flight. He flew directly south from Denham! Could be just a Prumour though.
(I think I've just invented a euphamism for a pprune rumour!)