Ha I've had the exact opposite experiences with them. Maybe you're the tit? xAussies are tits. They're English but even more arrogant. At least we can laugh at ourselves.
I hate I say it but germans are quite tolerable these days.
I like Germans, know quite a few, and they're all nice. Look like they're miserable even when they're enjoying themselves though. Also freakishly good at anything to do with mechanics or maths. FFS!