LOCKS
Everything can have a lock.  Success or failure depends on how the
lock is set up.  '@lock object=#0' will cause everyone to fail against
the lock.  Locks can be boolean expressions, using parentheses (), and &,
or |, and not !.  Players must be referenced with an asterisk *.  You
can also lock according to gender, sex:male or sex:female.  Example:
'@lock women's restroom=sex:female|*Janitor|(sex:male&key)'  Keys are
things that you can @create.