Exactly. The real dead eyes are the FBI. They ran a study back in the 70s. A fight house scenario. But, the agent is sacked out in a bed.
They waited a long time, so he is good and drifted off into daydreams at a minimum. The agent knows what is about it happen, just not when.
The agents could not consistently hit the pop up target, in the panic situation. That's just across the room in mostly dark. These guys were not afraid, just startled. I see that test as a pivotal moment in molding future gun laws. But, I think it is un-realistic. Yet, it is a good reason to have dogs. You will need a bit of alert.