The hat man is a common hallucination of a shadowy man with a wide brim hat experienced in psychosis. I know about it cause it's commonly reported by people who take too much dxm or people on multi-day no-sleep stimulant binges.

It's just a form of pareidolia, your brain just trying to make sense of dark shadows in your room in its forced twilight. It's pretty much a meme.

Obviously, the man you imagine pointing a gun at you to get work done.

They didn't teach you this motivational device in school? Clearly, you went to a public school.