Ohhhhh Grandma would have a field day with that one. She told me she'd tan my hide if I ever referred to it as "babysitting" when Mike has Hank. Also, for the record, the headlines on Yahoo are:

1. Few effects of poor day care last past age 11 (Reuters)
2. Study links child care to poor behavior (AP)

So if you stay home with Nathan, you could make him suffer, but only till he's 11.