What German sounds like

I came across this via Facebook, here. It's quite amusing, if obvious, but what I found even funnier were the comments on Facebook about it.

Two common stereotypes about Germans are (a) they don't have a good sense of humour, and (b) they are angry. Cue hundreds of comments from indignant Germans saying "This is false! We don't sound like that!"

I'm not saying that this proves (a) and (b), but...