[bhrgunatha]

> I've certain encountered teaching in my own classes,

This kind of mistyping reminds me of those example of people whose names fit their job but it's rare to find such an apropos example.

Sorry to derail your point but the juxtaposition of "ch" and "t" here is perfect.

[mkl]

Not juxtaposition, transposition. https://en.wiktionary.org/wiki/juxtaposition

[bhrgunatha]

Yes, my mistake, thanks.