Let's see 150 - 200 campsites, 23 minutes per camper, looks like you'll have about a 76 hour wait. Hey, "it's all about me" right, too bad about your 3 day wait.
Do the math you bozos, 23 minutes is beyond inconsiderate, it's just plain stupid.
Ahem. We aren't bozos. You do the math. Not everybody leaves at the same time. Not everybody leaves on the same day. Not everybody uses the dump station. Not everybody takes 23 minutes. Your scenario goes beyond improbable to just plain inane. You are absolutely correct about the "it's all about me" attitude but it goes for you, too. I'm not going to rush because YOU want me to.