That's awful, i feel for you. Sorry these kids are torturing you . I agree with Mimi and the others who said they wouldn't let the kids return. This is just my opinion so bear with me, but knowing that their grandma can care for them temporarily, I would term immediately and return their deposit, in lieu of notice. I have that clause in my contract. Knowing that those kids behave in that manner is tough enough on you, but for it to affect the other kids (ie keeping them awake at nap) is worse. Out the door with them.