Did I say anything about being a pothead? I think you're projecting. By all means, use, even responsibly if you'd like. My comment about priorities was meant to imply that something is wrong when you're worried about a med school finding out something about you that you clearly don't want them to. And it's something you can control.
Yep. Why risk having documentation of use? I don't know if it can get out but it seems like a dumb chance to take.