Alan Hartley was an accountant who, i believe, tried to hide his 'other job' from his main employers. he still floats around in second halves on his vintage machine and ive even had the privilege of meeting him (although i'm not famous enough to get an introduction!)
also, a while back (Powderhall days), i seem to remember Mike Lewthwaite going under a false name in some Scottish Junior meeting (or whatever it was!). someone more knowledgeable than me will tell you what his 'new handle' was.