So bizarre. Last year my sister came home to a box filled with papers sitting outside our door, and a notice on the door giving us a first warning about leaving trash outside our door instead of throwing it out. She was practically crying with laughter when she called the front office to say she didn't know where the box had come from. Since it was all papers she went through it til I found one with another apartment's number on it, and at that point management said they were coming to pick it up. I still can't imagine why someone who lived on the first floor two buildings away would put their trash outside my third story apartment, but we never heard another word about it.