A system provides behavior therapy by including separate compartments, where one compartment holds an object visibly positioned as a reward for clearing an objective. The system includes a first receptacle. A second receptacle is coupled to the first receptacle. The second receptacle includes a compartment for receiving the object. Access to the compartment in the second receptacle is obstructed by a wall of the first receptacle. The apparatus further includes a magnetic lock. Access to the compartment in the second receptacle is provided in the event the magnetic lock is opened. The system further includes a magnetic key including a third magnet. When the magnetic key is placed proximate to the magnetic lock, the third magnet displaces the first magnet from the magnetic attraction to the second magnet to open the magnetic lock.