Something that may be useful is for ownership of objects that are part of another object or character. For example you have 3 objects each named nose. One belongs to the character Bill, and another belongs to the character Ted. the third one is part of an static object named statue. It would be a nice convenience if you could refer to the owner of a specific nose object when referring to it. IE look at Bill's nose. Push statue's nose. While this can be done using Bill's, Ted's, and statue's as prefixes it'd just be more work.
This would also be useful if parts objects are ever able to belong to more than one character or object. IE object nose is part of both characters Bill, AND Ted.