I recall one of my difficult child's doing a bit of gambling. It seems the kids who are "balling" making $$ have extra money so they bet on sporting events etc. difficult child's who wanna have $$ and get caught easily end up sometimes being victims.
Have you searched difficult child's room, backpack, cellphone etc?
Our easy child/difficult child absolutely gambles. He plays poker regularly and he
also bets on football and basketball games. My husband and I assume
that impulsive kids with addiction issues pretty well cover the
gambit of "vices". Sad. DDD