答案来了~

答案就是sleep walking。
做了以为没做 - 年青人梦游，晚上自己挖出了尸体，醒来就忘了, 自己吓自己

没做以为做了- 教主深被噪音干扰又太累起不来，以为自己梦里醒来，换了电池，其实什么也没有做，还在呼呼。
好在是电池，如果是想上WC，又以为自己找到了地方，那就麻烦了，哈哈

The young man actually was haunted by that sentence “Please bury me deep and well”. Subconsciously, he didn’t think that he had done that very well as requested. And he was also stranded in that isolated place too long. His mind did play the tricks on him. If I were alone in a confined environment without any contact with the outside world, I would go bananas in two weeks.

Moral lesson:（班长们一定喜欢）多上网，多灌水，各路大侠美女不要闭关修炼太久了 J