No I didn't. I breached the herd consensus so I must be a sociopath:)

But thanks. I found the situation kind of confusing. I knew it was the right thing to do, but surely the other half dozen people who walked past when I was busily dithering, and the other dozens of people who must have walked past before also knew this.

There's the whole psychology thing of The Bystander Effect whch I sort of get but not quite. I mean I'd have been way happier leaving this to someone else myself, but just leaving some guy potentially at risk didn't seem justified.