Food for thought, indeed.
But I would have a quibble. It’s a little unfair to blame people for forming an opinion that he was a “bum”, when he had obviously gone well out of his way to present exactly that impression. When you act like a bum, dress like a bum, smell like a bum and talk like a bum— it should not be a surprise to find that people perceive you as a bum.
Had he sat in the gazebo in a suit and tie and cleaned up... of course people wouldn’t form that same image.
The truth is, most of the time you can in fact read a book by it’s cover.
I thought that was what was so impressive. Even though he went out of his way to project this image, students did witness to him and some invited him to services.