Lead ordered detainee to go to bathroom and walk for twenty minutes. Refused Water. Corpsman checked his vital signs and stated he was fine. Both interrogators continued with the “futility” and “pride and ego down” approaches. On occasion when the detainee began to drift off into sleep, lead dripped a couple of drops of water on detainees head to keep him awake. Detainee jerked violently in his chair each time.