Grace period?

[Artsand crafts]

Can you update your policy to charge $1/ minute if you are not doing this already, but still ask them to come at proper hours. I would not answer the door until is 7:30 even if they keep ringing the door bell. I cannot hear the doorbell if I am in my room since it is set in the low volume so nobody wakes up kids napping in the second floor. Some parents know that since I have casually tell them. I actually charge $0.25/ minute late pick up or drop off, but I have not had the need to enforce it. When I have the chance I casually tell the parents how busy I am in the afternoons, too.