It's funny you should post this; I was just talking about this with my neighbour who is a foster parent & says the same. It was a career hazard I was so worried about...getting so attached to the little ones. But, like yourself, I have a great group; our day is filled with loving affection for each...kids, of course, need that as much or more than the other aspects of care we give them. However, at the end of the day I have an inner sigh of relief when I hand the happy, smiley kids (or the crying baby) over to their parents.