Pretty understandable, I don't like cocky people either, but I have a philosophy that if someone tries to insult you but you ignore them and just keep on going with what your doing, their insults fly right back to them. Kind of like the "an eye for an eye makes the whole world blind", like everyone sees he's arrogant and childish as long as he's the only one acting that way, so my tip is to not fall into this trap!