I have never burped in my entire life, besides when I was a baby. I never thought about this or the fact that it was weird until I realized other people burping all around me. I don't like the taste of soda and I don't drink it, so maybe that has something to do with it? I have no idea, but it's so weird, no matter how hard I try, I can't even make myself do a fake burp! Does anyone else have this issue??