I believe many of us hate the feeling when we know something for a fact but people still think that they know better. It may be something that you discuss with friends, online with random netizens, or with family. However, probably the most annoying is being doubted by your family members about something that you, in fact, have a few degrees in and are passionate about.
For example, one Reddit user shared her story online after being doubted by her father while she was talking about her work. Despite his concerns, she assured him that she knew better and this caused quite a bit of family drama.
More info: Reddit
