Yea i had the same problem a while ago, my mom and dad both used to smoke, but they divorced and my mom quit but my dad still smokes. Then i found my dads stash, and couldnt find out how to let him know. I go to my dads every weekend so what i did once was put a bag of weed in my wallet sticking a little bit out the top and i just layed my wallett on the table, hoping he would see it. That didnt work for me but a while after that my mom caught me and flipped and told him, lol now weve smoked together 4 times.