I hate it when someone thinks they can have something of yours just because you aren’t using it. I don’t go snooping around in my roommate’s closet, looking at her clothes, thinking, «Wow, Audrey hasn’t worn this in a long time. I wonder if I can keep it.» 

We are taught from a very young age to value sharing, but as we grow older, our willingness and desire to share keeps shrinking. You go from «you have to share your toys, otherwise you’re not a good person» to «income taxes need to be abolished» within 60 years of living. Of course, both of those examples are pretty fringe, but I think it’s a fair assessment to say that most people don’t like being told what they can and can’t do with their stuff. We have so little in this life, we should at least have some say in what happens to our possessions.