When an item is new, any player may use it.  Whoever rents the item ten
days after it was touched by a player will become the item's owner.  Bound
items are wearable only by the owner.  They may still be looted from a
corpse or stolen by a thief.  Binding is permanent, a new object must be
obtained if another person wishes to try the item.

such as "spell" or "MUD Basics"