I have a 3 year old and 3 years leave crumbs around. So sorry about that. As for everything else, we are happy to pay for anything we damaged which I know we did not. We ran the dishwasher and emptied it but we found a couple cups after it was done. I would recommend if you are that worried about every glass ring, a couple dirty cups and food crumbs you may not want to rent to people with children. I tried to follow the pages of rules in the home, so sorry if I missed one, that was never my intent. I always take good care of every rental I've rented.