I'll begin with an ending, of sorts...

In the last minute of the last class that Dr. Robison taught (and he was adamant that he is not coming out of retirement!), a student called him on it.  I believe he would have been quite happy to simply end this class as he has so many others, but when asked, he humbly admitted that this particular chapter was indeed at an end.  True to his nature, he offered sage words of advice and dutifully waited till every last student had logged off to make sure there were no more questions. I logged off, but as I did so I knew that we would never run out of questions, as I am sure he will never run out of answers.