Son is 16. Text about 21:00 saying he's staying at a friend's. Someone I don't know. So I say no, don't know them or parents. He's 16 (just). He says everyone is so he is. I'm saying no. Where are you? Says somewhere vague about 3 miles away. I insist. He continues to say nonsense about why and can't get back coz he got there by taxi. Basically I ring him. Tell him he has to get home. Where are you? Asks his friend who laughs and says somewhere about 6 miles away. I am angry and shout telling him I need an address to pick him up. He won't give it. Don't know! Puts phone down. I text. His dad texts saying you Ave until 22:00 to tell us the address. He must turn his phone off after I text how disrespectful he is being. And he has not answered nor text since. I have gone through anger, to hurt and now fear. I am so worried and yet immensely disappointed. I never raised him to be like this. I have to work at 07:00 and I am so churned and anxious. He is still my child, and I thought he was a friend to me. I don't know what to do.