I don't think my parents ever figured it out and I never told them to this day. My son was pretty up front about it and although I would have preferred he wait until he was out of HS, I didn't make a big deal about it but just advised him to be careful and stay away from cops, chemicals and man made things. In other words, don't be stupid about it. His mother was not so pleased and still worries about it even though he's in his 20's and has since moved out and bought a house. All part of being a mom.