Remember there's germans in this community, who could easily feel offended.

We've learned our lesson and (without generalizing), I sometimes feel like people outside europe (where all this has been far far away) don't always see the momentousness of nazi germany, totalitarism, ww2 etc. - I am very (read: VERY) sensitive towards nazi jokes, use of nazi symbolism and the like. In germany, we're tought to take this very serious since we're in kindergarden (almost...)!
How sad: Regarding the world cup, british soccer fans have been told that it is NOT considered funny in germany, to greet people using the "Hitlergruss". Historical awareness is written in very big lettershere. And this has nothing to do with repression or forcing this upon public (people in international communities sometimes imputed this to us or our gouvernment, regarding the ban on nazi symbols like swastikas. You can imagine discussions on CoD forums, i.e.).