All behavior is impacted by the environment. Even if the trainer does nothing consciously, the animal will still perceive cues that are in the environment during training. In this video, Ken Ramirez uses a kitchen timer to ensure that he is keeping his training sessions with Marlin short. When the bell rings, Ken ends the session and asks Marlin to relax on his mat. After only four training sessions, upon hearing the bell Marlin went to his mat automatically—without any cue from Ken. The bell had become the cue for Marlin to go to his mat!