All ownership comes to an end, either if the thing changes owner, or the thing is thrown away or destroyed. To support these events, two operations are available: disowning a thing and unregistering a thing. Disowning a thing removes the ownership registration, but leaves the thing in the Thing Registry. The thing then re-registers itself, allowing it to be claimed by a new owner. In this way, a transfer of ownership can take place. Unregistering a thing, means the thing is removed from the Thing Registry altogether. It is the graceful thing to do, at the end of the life of a thing.