Ds is in year 10. Not a perfect child but been in trouble for behaviour at school twice before, once for fighting in year 7 and once for mucking about with water taps in science. He is of average intelligence and is doing ok in school, not great, but not awful either.
Got a letter from the school today saying that he's been in trouble with a group of boys for mucking about at lunchtimes and.for being rude to staff and not doing as he's told.
Ds is at his dads at the moment,(we've been divorced 11 yrs) but I've spoken to him on the ohone and he says he was part of a group pushing and shoving around some lockers and he was not part of it but he got told off with the other 5 boys.
Ds has never been a liar so I'm inclined to believe him but his honesty is outweighed by his terrible attitude. All teachers are horrible, he gets told off when it's not his fault, in fact nothing ever his fault and he's never sorry, so for example if he knocked over another child when he was younger by accident he would always admit to doing it but would never apologise. He's still got that attitude but with hormones mixed in. He says things like his life is terrible if he can't get something to go right. 
The school have said he won't get another warning and will get an hours after school detention with a note on his school record that will go on his final report and as he's booked to go on an expensive school trip I have been told that bad behaviour will mean he won't be able to go.
I know lots of people on this board have much bigger problems to deal with than this and obviously I have to speak to the school once the teachers are back.
Ds behaviour and attitude have not been great lately, he wants to live on the x box or PC and homework is rushed on the bus. He never wants to do anything apart from sit in front if a computer, I really struggle to get him to watch tv nowadays let alone go outside or come to the shops.
I just thought I had to learn to give him some space and as long as he does some basic chores (keep room tidy, put away laundry, dry up, make sandwiches etc) which he does, I've been leaving him to get on with it. He complains if we have a family day to attend as he "has too much to do" meaning gaming!
Any words of wisdom would be appreciated.