My DS seems to have a pattern of being fine for a while and then blows up (he's 17) and says some awful things to me. Last night he told me I was a useless piece of sh*t. Needless to say, I was in tears in bed. And a lot worse has been said too. We had gone to Ikea during the day for things for the new house, had a lovely day together and then I spent the evening until 2 am trying to find him a new coat (he lost his in the move) online (money's tight etc.). He had heard that a friend was in trouble, being beat up by a gang and wanted to get involved. I said not to get involved too much because we have just moved from the neighbour who was violent and aggressive and I don't want it coming to my door in this house. Was I unreasonable to say this? Is this normal, is it hormones or am I just a bad mum? Sometimes he has my head confused.