That's exactly why I don't post "open" hours. I post close hours on my website cause that's the latest, but no open hours. And I never tell clients when other kids arrive. For example, I have one child that comes at 7am every day. A client once asked "I notice little suzie is here every day when I arrive, what time do you start? " My answer "Her drop off time varies some days... and then when she's sick or on vacation I get to sleep in a little" This way they don't know.

Again, I have a great system. My front door is open and welcoming when I'm open and closed when I'm not. If my door is shut then someone has gotten something wrong! Some days I have a drop off at 7 and then not until 8:30. My door opens at 5 to 7 and closed after the arrival until 8:25. It's how I control it.