i don't know for sure, but she probly wasn't joking, bring her a joint of somthing realy good and some literature on medical pot, if she used to smoke she wont be hard to convince. i used to smoke with my mom, (she was a paranoid scizo.) from 16 till i was about 19 when i moved out. anyway what state do you live in? try and get her legal, if she diagnosed manic dep. she needs medical weed, and any pot-doctor will give it to her, and then you can be her caregiver and grow bud for her (there are obvios binifits to being a "grower")