I'm going to get pissed when people talk to me
Why are you going to be pissed at people?
Because I want to be left alone and not talk to anyone.
Being rude to people because they aren't interested in you seems counter productive. If you want others to be interested in you, you have to do the same for them.
Nah, I don't take interest in that.
It's fine if you want to be left alone, but you shouldn't automatically be mad at them. If you want to be left alone just communicate that to them. It would allow for a better outcome for both parties.