If I am open then the parents still pay for that spot. I have written into my contract that I have up to 8 personal days a year. So, if I have to close because my youngest is throwing up, one of my kids has a doctors/dentist/eye exam (try to get on the same day), or if I have an important meeting at the school I can still attend. I don't usually use all the 8 days, but they are there if I need them. If I happen to go over the set number of days, then I would not charge them if I am closed.