and someone with a PhD was like “Well, you know what works for me…”

I do workplace safety and hazardous materials, so occasionally I get to start a talk with “This room has more doctorates than nostrils, so it should be easy”. And then I have to explain things like “Dangerous liquid goes into the dangerous liquid sink” or “No, you can’t remove the mask to scratch your nose, even if it’s really really itchy”.