Fuck that, man. Blowing smoke into your own mother's face is a little pissant thing to do. What, are you trying to act baller? Think about it. Bringing anything illegal in her house makes HER responsible for it. It puts everything SHE'S done at risk. She may have been disrespectful to you, but respect is worth much more than the money you pay her.

You acted like some punkass kid who does shit you KNOW will dig you deeper, but you do it anyway. That's a cheap shot. Maybe you DO need rehab if you chose your weed over your own mother, no matter how horrible she's been.