I have the same problem with a mom ... no matter what I say or do she stalls. I think she figures I'm open until 5h30 so she is going to get her moneys worth I don't know. I've talked to her, I get her son ready to be out the door, I even started cooking diner, I told her I had appointements, I ignored the conversation ... If you find something that works ...PLEASE let me know. Not that I mind chitt chatt with adults but ... everynight and by the time she leaves, I'm way behind schedule sometimes and I have two of my own and a very hungry husband