This is as old as the hills....I think my SS has taken money from my purse - he was the only one in the house all day. We don't, like most people, use cash alot. But I had £100 in cash which I was keeping for treats for a break this week, just me and partner and £20 quid is missing - I can afford to lose it but it is the point of it,, For context DH has been really ill this year and this break is much needed. This summer my 17 year old DS moved in with us after his relationship broke down with his mum. It has been a crap summer for him so I have tried to give him some slack even though he has been acting out alot, I know I had the money. Do I let it go (for now) so it doesn't ruin our break (we are leaving him at home for a week on his own for the first time, DH is trying to trust him after some pretty rubbish behaviour on his part this year. It has never happened before. Do I talk to him on his own?. I am upset but equally don't want to make accusations which I can't 100% prove.