he has a "medical condition that makes it uncomfortable for him to sit for long periods."
Just wondering what you all would do in this situation. I had a student come talk to me today because he is close to reaching the limit on unpenalized absences in my class. Fortunately for me this is a problem that my dean will have to deal with--I give students a set number of unpenalized absences (5 per semester; actually this is a department policy). Because 5 is a pretty generous number of absences, we don't distinguish between excused or unexcused absences.
My suggestion to the student was that he was welcome to stand up in the back of the room whenever he felt that would be more comfortable, but he said he wouldn't want to do that. I thought that was curious but as a professor I probably have a skewed view . . . would you come to class and stand up, or would you skip?