That's a totally different argument. He could have asked for the ability to teach online, or for specific in-class accommodations, but instead he decided to go

That's a totally different argument. He could have asked for the ability to teach online, or for specific in-class accommodations, but instead he decided to go into the classroom and predictably, when a student didn't go along with his contrary-to-school-policy demand, he used it as a way to resign with a bang. Also, there's no real evidence that plexiglass is effective. https://www.bloomberg.com/news/articles/2021-06-08/fortunes-spent-on-plastic-shields-with-no-proof-they-stop-covid https://www.bloomberg.com/news/articles/2021-06-08/fortunes-...