Yeah, that case would be simple. But I'm thinking more about the plots that had half of their land move a couple feet, while the other half remains stationary.

    Before:                  After:
     --------o--------        --------o--------
    |        o        |      |        o        |
    | Hatfld o  McCoy |      | Hatfld o  McCoy |
    |        o        |         |        o        |
    |        o        |         |        o        |
     --------o--------           --------o--------

    (the o's are the block wall)

Do the McCoys now own half that wall? What if their house was in the top half of the property, and their driveway was along the western edge of the bottom half? Keeping old property shapes would allow them to re-pour a new driveway to line up with the garage, but first they have to demolish the the Hatfields' stupid wall.

BTW, this is gold:

> ...most people see problems as tools they can use as a reason to talk to other people.

I hope my choice of plot labels signals my agreement