It's nervewracking. We can never let our guard down. Mine is now 8 and everyday I ask a multitude of questions to be sure no crazy slipped by us and to be sure he is happy. Also, One tip I learned from daycare: if it's right, after a week or 2, they start to run into the building every morning-- excited to be there. But a baby crying ugly, crying daily after 2 months means daddy/mommy red alert.