LOL! To be honest, I haven't either - even here in San Francisco, the "Heart of Darkness". But if I was 5'4" and 300 pounds with warts all over my face, I expect I would have.
We can therefore derive a simple rule: A handsome man who behaves chivalrously toward a woman is charming, confident and sexy; an ugly man who behaves chivalrously toward a woman is a creepy, vulgar sexist.
LOL! I wonder how THAT fits into the good perfesser's theories?