One time I was daydreaming some fantastical scenario where aliens or government agents or whatever had to call upon me to save the world, but at some point in the daydream my self-insert character went “wait, this doesn’t make sense, this whole situation is just too implausible, I must be a character inside a simulation, I NEED TO BREAK OUT” and I was jolted out of the daydream, terrified of the fact that my mental construct of myself somehow realized it was a mental construct.