I've been thinking about your situation since my last post and I don't think anything would be achieved by you having them both to stay with you.The bad behaviour would merely be transferred from USA to England.Your Sil wouldn't get a break from it and you would be made to suffer also.Once he's in your house you may find him difficult to get rid of.Your presence will not guarantee his good behaviour.He seems to need treatment not a holiday in England so that he can create more havoc in peoples lives. Whilst you might feel bad refusing her request I'm certain you'd end up feeling much,much worse if they ended up in your home.Also,given your SIL attitude she would probably take her son's side in any conflict which would cause a rift between you anyway. Dec