Facebook COO Sheryl Sandberg has a message for everyone: If you have kids, leave the office at 5:30 every afternoon so you can get home to be with them.

That doesn't mean you can be a slacker. She says she's emailing people late at night and early in the morning to compensate for leaving early-ish.

She's been telling people that she leaves at 5:30 because in the hard-working environment of Facebook it's sort of a no-no to leave right after 5.

Via Mashable, here's a video of her explaining it: