My mum and dad have always been really cool about it. I can't remember them actually catching me with stuff but we have always discussed it and my mum seems to have gone from disaproving to accepting and treating it as a joke. Hell today my mum rang me up and said 'sounds like you had a good time at that festival on sunday according to your sister you were getting free beer from promotions girls and rolling a joint in the toilet when you spoke to her' me 'yeah it was good'. They are sort of hippies in a peculiar way.