I loved working for a big corporation abroad once, along with a very petty team of gossipy Dutch people. They always kept to themselves, making fun of everyone who wasn’t part of their crew.

One day I just couldn’t tolerate their bullshit anymore, turned around in the lunch area of the office, and asked them in perfect Dutch:

You are aware that I speak multiple languages, right?

I have never seen ten people’s faces turn grey instantly before. :D

Even funnier, they begged me for days to not report them to HR.