What's the most embarrassing thing you've ever done?

[Symphony]

Two years ago I was finishing a school project over my friend's house with our group. They got to talking and somehow a discussion about fathers comes up. My friend then tells us that she didn't really care about not having a father and even if she did, her mother wouldn't tell her who he was. The thing is, while I was concentrated typing the project, I overheard the talk and right after she said that I added: '...or maybe she doesn't know who he is'.
I just froze after that. She started screaming and crying all over the apartment; got out and started crying on the corridors. I had my terrible pokerface on and while she was out I simply left.
Long story short, she doesn't even wanna remember of me now. =/