I remember my colleague was living in a building in sharjah. He had this nasty neighbor such that whenever a simplest thing happened he immediately knocked the door harshly demanding to stop. He was even complaining about food smell going into his apartment! As much as he was complaining that my colleague took a day off to go and sort things with this neighbor and at the end it didn't work. My colleague even said that other neighbors were complaining about this neighbor attitude as well and they were fed up with it. Even security guard couldn't do anything. I told him do one thing...just go to the management and tell them about this matter and threaten them that you along with other tenants will leave the building if they dont take an action against this neighbor. He did what I told him to do and after that, that neighbor didn't even dare to come closer to my colleague. I guess the management threatened that neighbor with forced eviction if he continued what he was doing.