In 1970 I was on a det in Greece with No 72 (Messopotamia) Sqn, working with 4 Hueys of the German Air Force. On BoB day, we duly flour-bombed them from the Wessex and then took over the beer for a good thrash. After a while, I noticed an old WO pilot sitting quietly on his own and engaged him with my dubious German.
It transpired that he had been flying FW 190s from the Pas de Calais in September 1940 but couldn't remember a battle! A different aspect!