You people scare me. A lot.

As for your original problem, that sucks. Mom should give you an "allowance" but then you should turn around and have her buy your weed (separate from Andy's and hers) without Andy knowing, so then you can smoke when he's not around and he'll never know weed's missing from his stash.. he'll just think you spent your "allowance" on fast food and movies like any other "good" kid...