Hello - my dad passed away a couple of months ago. He was on some heavy class A drugs. During his last weeks at home he was aggressive toward me and my mum but not towards others like carers where he was actually over friendly in some ways. We thought we were doing a good thing fulfilling his wish to stay home but it’s torn us all apart. My mum keeps going over his behaviour and what I’m asking is how would / would the drugs he was taking have an effect on his personality and behaviour? Thank you