My 5 year old went on a sleepover and the next day when picking him up, the parents told me he threw a ball and damaged an expensive painting, then they said they would tell me how much I owed them. I was devastated. I asked my son what happened, he told me that he and their son were playing and it was an accident, I then asked where the parents were, my son said that one parent was sleeping and the other had gone out to get breakfast stuff, he said their son got the ball and they were playing and then my son threw the ball and it accidentally hit the painting causing a puncture. The parents said that I owe the £1,000 maybe more. I am shocked, I did not ask them to leave 2 5year old's alone unsupervised and I am not thinking I should pay due to them leaving the boys in that situation. Am I right? devastated!!!