Use your best judgment to determine who the most appropriate person is for you to meet with regarding this matter. Plan on meeting in person, if possible.  Bring your written notes with you when you go to the meeting, as well as any other coworkers who also wish to complain. Request that your complaint remain anonymous. This way, you will avoid making enemies with the co-worker in question. Avoid making complaints via email, which are both easier to ignore and less formal than in-person meetings. That also leaves a paper trail of your complaint, which you may prefer to distance yourself from. Think through the points you'd like to make and practice reciting them in a calm tone of voice. If you're in the heat of frustration with the person, the boss might be more likely to assume this is an interpersonal matter you're blowing out of proportion, rather than a serious complaint you're making with the good of the company in mind.  Point out some of the person's good points: "I like John, really. He's funny and I think he's a good guy and I hope he turns around, but I'm worried about him." Don't ask directly for the boss to fire the person. If your manager asks, "What do you think I should do?" feel free to make your preference known, but it's not your decision to make. Once you have made a formal complaint, it is no longer your responsibility to continue keeping tabs on this person or trying to get them fired. Go back to focusing on your own life both in and outside of work, and just try to stay away from the co-worker in question if they bother you.
رتب اجتماعاً مع مديرك أو مشرفك. خطط لما ستقوله. دع مديرك يتعامل مع الوضع.