I am reading "Spitfire: portrait of a legend" at present. There is a story of how Douglas Bader was finally convinced many years after the war ended to attend a Luftwaffe reunion in Germany (on the understanding that he was not expected to be polite).
Bader arrived, and after a while, made his way up to a balcony where he could look down on the thousand or more ex-Luftwaffe pilots that had assembled.
He turned to his companion and said, "I didn't realise we left so many of the bastards alive".
He was known for being a tad aggressive when it came to prosecuting the war in the air.
PS - absolute ripsnorter of a book.