A client has been out for the past month, with almost zero communication. They called earlier in the week requesting to start back up, stating that they had the flu for the past 3 weeks and are feeling better now. Is doctor’s clearance something necessary before continuing to train this individual? I ask this because he has shown in the past a habit of dropping out and not communicating, when asked for clearance from a doctor he gets rather irate and views it as another obstacle in his way to his goals.