I unlock my door at 7:30, and my hubby has left for work at that point. I'm home alone, so they can ring the doorbell if they want, but there is no one to disturb, and I won't go to the door early. Of course, it has also never happened.... my parents seem to be always running late because they have trouble getting their children out of bed LOL. Nothing like being ready at 7:30 and being able to drink my coffee in all peace because my 7:30 drop off doesn't come some days until 7:45. Bonus!