Do you have them? Please tell me your worst ones to ensure that I will never have blissful sleep again. My worst one was a fairly standard feverdream that I had as a kid. Green and blue demons with many heads adorned with horns and filled with knife-long teeth grew out of the walls of my living room and lunged themselves at me only to disappear when they hit me. In retrospect this does not sound too scary but it was terrifying when it happened.