Chuck Palahniuk and the story of 'Fight Club'

From Charlie Hoehn's blog: the story of how Chuck Palahniuk researched 'Fight Club':

He went around in bars, talking to groups of people about their fears and regrets. He’d also ask them about what their life was like (their job, their living situation, etc.) Then he would sit at the bar and write, letting the most common or unique answers shape characters and parts of the story. Those answers were things like: being a grown man who’d never been in a fight, wanting to quit a worthless 9-5 job, self-loathing for getting caught up in a materialistic society, lacking a father figure, and being a caterer and pissing into the rich customers’ food.

I'm ashamed to say that though the film is one of my favorites, I haven't yet read the book. This has given me impetus...