The whole issue is to identify a "known performer" in the first place. Otherwise, that practice being more common means people can leave their job for weeks he

The whole issue is to identify a "known performer" in the first place. Otherwise, that practice being more common means people can leave their job for weeks here and there no questions asked ("I'm going to work for our main competitor for 3 weeks" won't fly if it needs approval), and come back without impact or penalties on their performance. That would be ideal, but we're so so far from that. Even getting people to properly take their parental leave is still a fight.