Bear with the seeming nonsequitur: in 2010, I found myself in Sedona with my friend Jessica McKay, who bought me a fancy dinner and more than a few drinks. It may have been the margaritas talking, but she waved aside my concern about her picking up the bill by saying that I had to thank her in print whenever I got a book out. Jess, please take note: thank you for the tacos, the tequila and the fine company. We are now square.