I got this fantastic email the other night.  The headline was "No Asshole Rule to the Rescue" as it is here,  I repeat it in full, except for the name of the sender:

Dear Prof. Sutton,

I'm am about halfway through your book The No Asshole Rule and I have to tell you how it just moments ago let me diffuse a possibly temporary asshole (but probably a certified asshole) in a way you might not expect.

Living in NYC you expect a fair amount of asshole interactions but tonight on my way from Union Square to my home in Park Slope I was confronted with an unusual asshole. I left your book at home on accident and decided to pass my time playing Word Mole on my cell phone. All of a sudden in my peripheral vision I saw the edge of a book and heard a mumble. I looked up and a bookish looking man was staring at me with a disgusted look and said, "This is Book."  the implication was "you kids these days just never read and only look at your mobile phones all day." I was taken aback for a moment, deflated by his constant critical stare, and then a swell of confidence came over me. I responded,"Yes, I know that's a book. I left my book on the counter this morning. It's called The No Asshole Rule and it's really been helping me deal with negative confrontation." all with a kind voice and friendly smile. IMMEDIATELY his face changed. He knew he was exposed. He responded, "Oh..ummm... I'll have to read that..." I said "Yup, it's great. Especially Chapter 4.".

My stop arrived and I knew. I had handled myself thanks to The No Asshole Rule.