DS is two and these past few weeks has become very naughty i.e biting,pulling hair, hitting, pushing, shouting, screaming, throwing toys etc this is happening everyday. I live with my mother still and her partner is a idiot to say the least they must shout at least 3-4 times a week i mean REALLY shout and go for it and today DS told me to 'fuck off' i was mortified am i to blame for my sons behaviour due to him living in this environment is it just the terrible two's or both i'm really hurt and feeling very stressed i don't know if this phase will pass or how much longer i can cope!