I just watched the presser, so now I have some context for the nightmare question and answer. Sounds like the reporter asked, As a defensive guy, is seeing what happened tonight like a nightmare? (I may be off a bit here, but I'm close) HCSS's response, That's a dumb question. What, a nightmare? Here HCSS seems to dismiss the question, and a pause follows. The reporter follows up, What, what.. specifically..? HCSS then explains how watching the game unfold that way was frustrating as a coach, and he's seen his defense play that way in the past. Shafer said it's not a nightmare and called it a bad football game, and a bad job coaching the players by coach Shafer. He emphasized that he is anxious to get back to work and to fix the problems. HCSS then emphasized that what happened on the football field is not a nightmare. He said, ..but not a nightmare. [A] nightmare is for children. It's a childish question.
HCSS wears his emotions on his sleeve. Reporters ask silly questions, and sometimes reporters ask questions with the intent to provoke a reaction from a coach. HCSS handled this question pretty well in my opinion. He could have avoided the dig at the end, but at the same time the reporter's question ending with "like a nightmare?" sounded like a high school student speaking to his teacher [sort of like Jesse Pinkman in class with Walter White]. And the body language is off camera. For all we know the reporter could have had smirk on his face, but I'm guessing instead that the reporter simply asked his question in a silly manner. His voice and the content of his questions both sound very young to me.