My son is 12 and has ADHD. The past year he has been swearing all the time in conversation and making very rude inappropriate comments towards me. I find this very uncomfortable and struggling to know what to do about it. The way he speaks is very rude and vulgar and he thinks nothing wrong in doing this. No matter how many times you tell him to stop he will do it again. Afterwards he will say sorry. He's very immature for his age and repeats everything he hears and sees which I also finds bit strange. Is this a symptom of ADHD or is this a symptom of something else? He never learns from his mistakes and doesn't seem to realise things are wrong. He has practically no friends at school and most kids seem to find him irritating or weird.