I know a kid like that. His name is also John, but he doesn't have a briefcase or a cane. He does, however, claim he got kicked out of school for attempting to kill another student, torture small animals, and ask out random girls. He tried to stab a friend of mine with a very sharp pencil, just because my friend disagreed with him about something stupid. He also talked to himself about how badly he wanted to ~*get rid*~ of every person in my class.
I don't talk to him, and I am very glad he got held back a year, so I have no chance of being in any classes with him.
Eh, I don't know. I knew a LOT of socially awkward people in high school who would say shit like that because they thought they were being funny. Who had tried saying inappropriate things to a lot of girls for apparently no reason.
I mean, they were creepy in their own ways, but my guess for him is that he's just really socially awkward.
Reminds me of a kid I knew in middle school who wore a business suit every day, carried a suitcase, and in general appeared very formal and reserved. Then, when the teacher wasn't looking, he'd throw chalk, smack someone upside the head with a ruler, or do any number of spontaneous things. No one ever told on him, because we were afraid we'd lose our entertainment.
What a fucking psychopath. He just walked around looking extra spiffy like he was going to a meeting of CEOs while everybody else dressed normally, and he'd just start hitting motherfuckers and throwing shit when nobody was looking? This kid had something profoundly unsettling wrong with his head.