Sima guang's police pillow is inspirational. Sima Guang is a child who loves to play and sleep, so he has been punished by his husband and laughed at by his peers. Under his inculcation, he is determined to get rid of the bad habit of sleeping. In order to get up early, he drank a full stomach of water before going to bed, but he didn't wake up in the morning, but peed in bed. So smart Sima Guang made a police pillow out of logs. As soon as I turn over in the morning, my head slides on the bed board.
Although not much ... hehe. I'm really sorry.