I was taking the subway when a dude sat next to my seat. The dude was behaving weirdly, like he hadn't been going outside for a long time, but i didn't really mind him. I was checking my phone which has a zoro fan art as the wallpaper. The dude next to me noticed this and asked if I read one piece and a zoro fan. I told him that I am a zoro fan, and that's when he acted differently. He threw tantrum by screaming about things like "Zoro fans are bad" or "Sanji FC is the best thing in his life". He kept screaming at the top of his lung which made the nearby people look at him. At some point, i yelled at him for disturbing everyone else in the subway. The guy then got scared fast and begged for his life. He told me that he acted tough because he thought he had been stronger from the bullying he had at his school. I spared his life and just told him to leave, after that.