u/davids_telephone

I am not looking to excuse my lateness. That's not the point here.

The point is that the student is there and ready to learn. And it seems like bad business to me to allow the teacher to see the student for just a second or two before kicking the teacher out. This keeps the student waiting for them to come back.

I know that with TNS students get their class credit returned; could it be better to just "punish" the teacher's lateness and discount the student's lesson -- and allow for a slightly abbreviated lesson to continue?!?

If it were my child I would much prefer for the lesson to happen.