def is_overrecruited(self, waiting_count):
if not self.quorum:<EOL><INDENT>return False<EOL><DEDENT>return waiting_count > self.quorum<EOL>
Returns True if the number of people waiting is in excess of the
        total number expected, indicating that this and subsequent users should
        skip the experiment. A quorum value of 0 means we don't limit
        recruitment, and always return False.