Nоаh is а 15-yeаr-оld bоy who is referred to your outpatient psychiatry clinic for “erratic behavior.” Noah’s parents are divorced, with joint custody. He spends his weekends with his father and weekdays with his mother. After a few sessions, Noah shares that he has been smoking cannabis daily for the past 6 months. He first began smoking after his father offered him a cannabis cigarette after dinner during his winter break, on the condition that he not tell his mother. Since then, Noah reports smoking daily when with his father and purchasing cannabis from a “cool kid” at high school with his allowance. However, with summer vacation approaching, he does not think that he can continue to secretly buy or use it without his mother finding out. He begs you not to tell his mother. What is your best response?