Rapper Young Buck might find himself back behind bars if he doesn’t stop using marijuana.

According to AllHipHop, Buck real real name David Darnell Brown, has failed four drug tests while on probation. On last year the G Unit rapper missed two drug tests, which almost got him tossed in the slammer considering he’s still on probation.

Earlier this year Buck violated his probation when he attempted to fake a urine test, and admitted to smoking marijuana with non other than the human chimney himself, Snoop Dogg. Side note: He set himself up for failure by hanging with Snoop to begin with.

The U.S. Attorney isn’t convinced that Young Buck is taking his probation seriously, which is what may land him back in jail if he doesn’t just say no to drugs. Maybe he can move to Colorado? Just a thought.