Some people have no sense of humour.
I've had several Spitfires (here in Finland, where we all are a bunch of Messerschmitt-fanatics!), they even have Spitfire-glasses if you buy a 6-pack of them in the markets.
However, "beer drinking with a WW2 theme", we've had some WW2-veterans visiting our happenings (Virtualpilots.fi), was fun to be drinking beers with the veterans - such as a genuine 109-pilot (Erkki Pakarinen).