People need to be careful when posting comments online these days. In this day and age, everyone has social media, and most people have several social media accounts. Everyone, including professionals, doctors, actors, artists and so much more.

The internet is public, so it's always possible for someone to find or come across something that might be about them. This means that people could be called out by experts for making up lies, making false claims, or spreading misinformation. This is pretty embarrassing.

Usually, someone asking the phrase, "Don't you know who I am?" is a pretentious and egotistical thing to ask. However, sometimes it is warranted, because some people truly do not know.

This happens online all the time, and luckily, many people capture these awkward moments and share them for all to see. Always be careful when making big statements, assumptions or claims online, because it is so easy to end up like one of these individuals.

Here are 25 embarrassing moments where someone did not know that who they were to was who they were talking to.