I am a relatively new employee at a large natural history museum. I give tours to visiting schools. One thing I learned a long time ago is that the kids are usually all great; it’s the parents that you have to watch out for.
During my induction, I am shown a whiteboard in the staff common area. It has a list of odd quotes and descriptions of weird people. I am told that this is a monthly list of all the memorable guest encounters in the museum, with a poll taken at the end of the month about who had the best (or worst) encounter, with a fun little prize. It’s a great way to keep morale high when the guests are at their worst.
I am explaining plate tectonics to a class as they assemble around our giant model of the Earth — a spinning globe showing all the major fault lines.
Parent: “If the Earth is a globe, then how come all the rivers don’t just flow to the bottom?!”
Me: “First of all, there is no if; the Earth is a globe. Secondly, what do you mean by ‘the bottom’? The bottom of what?”
Parent: “Like, the bottom! If the Earth is a ball, then it has a top and bottom, right?”
Me: “We have poles to indicate the axis the Earth spins on, but that’s the only way we’d define an arbitrary top or bottom of the Earth. And the gravity on the surface is what keeps rivers flowing how they do.”
Parent: “Huh… sounds like something an indoctrinated ‘glober’ would say. River flow can be explained so much easier if you account for a flat earth.”
Me: “That’s absolutely not true in even the slightest. Please don’t make such comments around the children, sir, in case they mistake what you’re saying as fact and not nonsense.”
Parent: “You can’t say that to me! I’m a customer!”
Me: “You are a guest, in a place of science and fact. Ask questions about the facts to learn, but do not question the facts themselves. Now, may I continue my tour, or will you keep interrupting?”
The parent remained blissfully silent and sullen for the rest of the tour.
At the end of the day, I went over to the whiteboard and wrote down “flat-earther” as my craziest encounter. The sad part? I didn’t even win that month.