Objeval()

FUNCTION: objeval(<object>,<expression>)

Allows you to evaluate <expression> from the viewpoint of <object>. You must be a wizard or own <object> to use this function. If <object> does not exist or you don't meet the criterion, the function evaluates with your privileges. No one may use this function on #1.

This function is useful for securing objects which need to evaluate attributes on things owned by others.