My Mother -
Told me the hitter box I found in her room wasn't hers. The weed was grass clippings.
I came home the next day and there was about 10 water bottles on the wet bar in the kitchen and she was veged out on the couch eating potato chips...
I was 18 and probably smoked a few times myself - she was only fooling herself.
She bought a brand new Harley last year too..