宿舍里一个人太差劲，太自私，怎么办？

Sorry to know your problem. For your problem, firstly I suggest you to ask yourself a question: whether others in your dorm feel the same way. If the answer is yes, it is quite simple to handle such problem. Just unite the rest of your roommate. As far as you united, I don't think the guy would still be that selfish. Otherwise, he would see the result. If your other roommates don't think the way, you should see whether it is your own problem or whether it is only for your bad relationship with him. For both situation, you should change your attitude towards him first. And try to communicate with him. Here I do remind you that every one is both angel and devil. But it is for different person. Perhaps, later you would find his kindness and become his friend.

不侵犯到你的利益就别管他，要惹你了就直截了当的说出来，因为这种人很没自觉

灭了他

扁

你应该先和他说一下如果他还这样的话就别里他了
知道他是这样的人就行了

不理他