You definetly ought to plant some shit in his room. If your parents catch you, then you can be like: "He sold it to me!" Other than that, there really is no reason for his brutish conduct, and you ought to beat the living shit out of him to teach him some manners. This may seem a bit juvenile, but, trust me: shitsacks like that only respons to strength. Please, please let us know when you frame his ass. Do it O.J Style!!!