I wouldn't smoke in front of my mom anyways. She knows I smoke, hahaha. Besides... I'm the youngest, and the only blind person in my family. I haven't had any other members of my family ask weird questions about it yet, but I could only imagine.
"where do you get this stuff at?", "But you're blind! How do you know what you ar getting?", "What if they give you something else?" "Who do you get it from?"