I was explaining the suffix -er and how it's a comparative, and then thought it best to mention how the suffix can also mean "one who" since a teacher is obviously not "more teach". Then I thought about the suffix -est and the suffix -ist and started on a riff about how when -ist means "the one who" it is a one who maybe does a superlative job or makes superlative money. A typist is obviously more professional than a typer. A chemist makes more than... uh. And then I was in a chemistry lab and I hadn't done the prep work for the experiment. And then I woke up.
Dear brain, how can you entertain me with such varied things on a Saturday morning and yet forget for a full half-hour that I drank beet juice Sunday night before bed? I do not like my Monday morning to feature panic. That is okay brain I like you anyway.