Our dorm room was unlocked when I went to bed (around 8:30). I left it unlocked because I know my roommate has an issue with bringing her keys out to the lounge right by our room. Once I heard her complaining to her friends about my habit of locking the door even when I am in the room, and one night she specifically asked me not to lock the door while she was out there because she didn't have her keys. The thing is, a man came into our dorm while I was sleeping and stole my laptop. I feel that because I kept the door unlocked for her convenience, she should hold some responsibility in replacing the computer. That same night, I did hear her come into the room to heat some food up and walked right out without grabbing her keys and locking the door. This is a habit I have seen common with her. In the beginning of the year, we would go to bed about the same time and I would always make it a point to lock the door, but noticed that when I would go to bed even before her while she was in the room she would not lock it when she went to bed. Anyway, is it reasonable to ask her to contribute some money in helping me pay for a new computer? When I did bring it up, she felt it was unnecessary and derided me in even thinking about asking her to contribute. I know it wasn't all of her fault, but I feel it is unfair for her not to even recognize that the theft would not have happened if she wasn't so lazy with her keys and with locking the door. Let me know!