I've been at my current school for five years, and for the first three, there was someone who was certainly among my best friends. We disagreed on certain topics, but somehow, we managed to get along with each other quite swimmingly. However, as time went on, he established himself as the political type, and as such, he became more and more interested in giving himself a positive image in front of who he considered the majority. He went on to consider my interests at the time, which included but were not limited Pokémon, to be childish and immature, and thus bad for that image; I essentially became an embarrassment to him. To remedy this, he started to ridicule me for such things in front of others, even if the subject was entirely unrelated. I might criticise him for a point, and he would simply scoff and say, to the amusement of others, "shut up, you like Pokémon." I was amazed that my best friend could act with such immaturity.
My point is, I made the decision to cut him off. It hasn't been entirely possible to do, since we still go to the same school. It wasn't something I wanted to do, since I had spent so long as his friend. But I felt I was better off without someone like that making my interests feel worthless. I decided to just stop caring what he thought, because I had previously listened to him and changed somewhat to suit him.
After a few years of this, I think I made the right decision. I have other friends who appreciate my interests, and I'm grateful for them too. He was a negative influence by that point.
Personal story over. Wasn't that nice and happy?
And for the next person... What was a memorable day in your life?