Using PreciousStones 9.5.5-SNAPSHOT and CraftBukkit 1.4.7-R1.0

When a player rents a Protection Stone, and the Owner destroys the sign, the player is still a tenant. It would be very useful if the Owner can cancel the tenant from renting by destroying the sign.

Off that note:
When a player rents a Protection Stone, if the Owner destroys the sign, the player cannot abandon his rent, he is stuck until the Owner re-places the sign so the player can shift-right-click to abandon the rent.