We live in a small building with about five houses. There are two houses on each floor, next to each other, and only one house on the ground floor. Recently, a bachelor who is above 50 years old has moved in. He says he has no family and lives only with his dog. The problem is that he behaves badly, keeps bad company, and often drinks with his friends. His drunken friends come to the building and stare at us in a very uncomfortable way, as if they have never seen girls before. Our building...