I have to admit that I don't really understand this until it is happening to me. Whenever I am sharing something and I am very confident to explain why it is happening, another person will say "okay you are the smartest, we all know". I will laugh because it is kind of funny to cut me but then when it is happening a lot times then it is really bothering me. I starts to shut my mouth when I am in the same crowd because I know once I say something they will surely cut me. It is not friendly at all. On my side, I am just explaining what I know. I am not trying to be smart and a know it all kind of person, but what I really know, that is what I am talking about. I think other people think I am too smart or showing off but I am not. It cause misunderstanding and instead of helping them now, i tend to be quiet. I think some people have this insecurity.