<human>: Can you give me a shortened version of the text?

My son, a 16-year-old, performs poorly in school (though they are all advanced placement courses) and I occasionally catch him high on weed. The bad grades are not due to a lack of intelligence, but a slew of zeros for not turning in assignments. He's admitted to just not studying for tests/quizzes often. In terms of drugs, he doesn't have much of an explanation. I've noticed that every time I've confronted him about these or other major issues, he doesn't beg me not to ground him or not to take his Xbox, etc., but instead pleads with me that I not tell other family members about it. It hit me yesterday, as I caught him high again, that perhaps I *should* tell his other family members, mostly older cousins who are all responsible and successful (with the exception of one black sheep and a few younger/peer cousins). Do you think I should make information about his drug use or information about his grades "public"? Could it possibly shame him into changing his behavior? Could it instead backfire? Anyone have experiences trying something like this?
<bot>: Teenage son has bad grades and smokes pot. Should I share this information with his older cousins in hopes of shaming him into changing?