Well, I'd wait until you found her bowl again and then take it.

Then, later that day sit on the couch next to her or something and say, "Mom, we need to talk." and then bring out the bowl and say, "What is this? What are you using this for? Are you smoking marijuana?? Do you smoke marijuana??"

If she says, yes, that it's none of your business, etc etc, say, "Good! I'm glad!" now pull out your bowl packed with some weed "Because if you're telling me to mind my own business-" light it at this point and take a hit and say while the hit is in your lungs "-I think you should mind yours, too. Unless of course you wanna hit these dank nuggs with me!" then pass it to her

:thumbsup: