Looking for teacher/professor fics

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Okay, I do know of the infamous teacher!fic and I just finished reading Professor Kinney by hah424

So aside from the above, are there any fics out there that pose Brian or Justin as teacher or professor.
My personal preference is for fics where they are both adults, as opposed to the teen/high school fics.

Any suggestions?

ETA: no real suggestions, but people keep posting (and deleting their posts) suggesting Commuter Flight Stories uh, when they realize that I actually wrote that one.
If nothing else, it's given me a couple of good chuckles.
It's not a teacher fic, but Brian does lecture at NYU.

ETA 2:A couple of links in comments point to unfinished WIPs