>As long as we're not talking about Artifical Intelligence, the object (A) can't add a property to itself for a feature that its not programmed to use. Therefore, another object (B) must add it, and after the B object is gone the A object still isn't programmed to use it, therefore, the property that was temporary, shouldn't have been added to A in the first place, and could have stayed on B the whole time.

I don't get the point about A being able to use the added property. No AI, take phone (object A) with it's usual properties, Sharon (object B) comes along with her chocolate covered fingers & uses the phone, adding a property to the phone of chocolate fingerprints. Sharon goes away, phone still has fingerprints (no argument that the fingerprints should have stayed with Sharon, but they didnt). Now the cleaner (object C) comes along & checks property of phone, determines it has property of chocolate fingerprints & cleans it, removing the property. If the property stayed with Sharon, the phone would never get cleaned.