mark shook his head in frustration , and suddenly the door opened again . the piece of dark cloth fell away . three large , metal buckets filled with water stood on one side of the cave while several more were placed on the opposite side . that 's the hope , at any rate . '' he was taken to a local hospital for overnight observation and discharged the next day in good health . `` just because you have n't seen me does n't mean i 'm not there ... 