Odd, indeed. The thought that first popped into my mind is that the next thing we will hear is that he is checking into a rehab center.

The video is dark so I can't read facial expressions but it seems to me that his being nonplussed was due more to his own shock at the response than it was to being aware of his own transgression.

I don't like his having said: See, that's what you get when you interrupt.

Frankly, I'm glad that so many people walked out.