My kids used to call the house at the wee hours of the night to let me know if they were going to be late (after 2:00am), but then when the phone rang it scared the daylights out of me, and then I couldn't go back to sleep. Now I have them text message me, and then if I happen to wake up and their not home, I check my cell phone and can go back to sleep knowing where they are. Thank God sometimes for modern technology.