Working with Germans every day of my working life for the past 6 years, I'd say the German accent. Why do these cucks end every fucking sentence with "Ja, you KNOW what I mean"?!?!? And they can't pronounce "th" it just comes out like an "s" or "d" - e.g "somesing is wrong with my small penis, dis is not güt.
Fuck. Off.
Also their arrogance knows no bounds, especially German engineers. It's like they've been told for the last 80 years that German engineering is the pinnacle of human endeavor. Perhaps it was when Hitler was running the show, but now they just gas monkeys and build unreliable electronics.