I explained to my son that grandma was going to pick him up from the day care center and he'd be sleeping over. Something she was looking forward to, something he'd enjoy. But on biking away from the day care center I felt I was going to be sick. Nobody can ever prepare you for the impact of the irrational worries that hit you once you have a child. It's not that he's not having a good time, I know he is. It's probablt connected in some udefinable way to how he says "mummy" in the middle of the night. Or "Bob the Builder" in his sleep.