jackron
A person who thinks the whole world is against him, even when he's the one who started the fight.
This jackron got into a fight with a pizza delivery guy because the pizza was 'too hot' and 'not spicy enough.'
That jackron at the gym yelled at the weights because they wouldn't move fast enough for him.
My neighbor is a jackron. He yelled at the mailman because the mail was 'not loud enough.'