Normally, when someone asks the question, "Don't you know who I am?" it comes across as pretentious and snotty. Sometimes, though, the question is absolutely warranted, especially online when people do not actually know who they are talking to.

These days, everyone has social media, so who is going to see your posts is really up in the air. It could be anyone. That's why making claims and criticisms can be risky if you aren't 100 percent certain about it, because the real expert could be right in front of you. That's what happened to these unfortunate folks.

The people on Reddit's "Don't You Know Who I Am" found themselves caught in some pretty awkward scenarios where they were talking to an expert or celebrity, and they didn't know it. Is it awkward? Yes, but it is also very entertaining to see these people get absolutely obliterated by the correction they receive.

Here are 15 unfortunate people who just didn't realize who they were talking to.