Dude my dad doesn't care if i smoke. and my mom just doesn't want me to buy it. So she gives me free weed. I always try to give her money for it but she wont let me. she gives me about 5 grams of some high quality mids a week. Offer to sell it to him for cheaper than hed get on the street so he wont risk getting busted. smoke it with him once a week/month. Try to be as cool about it as you can. But while doing this also try and enforce how it is a natural herb and he shouldn't even experiment with man made shit.