From Elendor
leave
The command leave allows you to exit an object you have enter'ed
into. When you leave an object, its @leave/@oleave/@oxleave messages
are triggered, and its @aleave actions are triggered.
The NO_LEAVE flag may be enabled on some MUSHes. Objects set with this
flag cannot be left. @lock/leave may also be enabled on some MUSHes,
which allows you to set who can leave the object. If you fail to
leave, the object's @lfail/@olfail/@alfail messages/actions will be
triggered.
See also: enter, @leave, @lfail, @lock, INTERIORS