I've done some undercover research to confirm Mark's allegations. The truth is: His B-17 was gunned down by German flak over Austria after which he took Geneva Convention quarters in Stalag Luft. With too much time on his hands there (though he made quite a career playing the female lead roles in the camp theater group, hence the nickname "camp sister"), he founded a POW band called like his crashed plane, quickly making the acquaintance of likewise downed RAF airman Nick Simper who had crashlanded with his DP Mk 1. You want evidence:
See, all is well that ends well, no, not in anal sex, but in Deep Purple.
Uwe