Sheryl Sandberg's book acknowledgements, of course, run for seven-and-a-half pages, thanking 140+ people. (Mandatory disclaimer: I have not read the book. Also, I never will.) But that is really pretty outrageous, and it is true that book acknowledgements, whether for fiction or nonfiction, have gone absolutely bonkers. Lorin Stein's got a pretty great historical take—"You don't see Joseph Conrad thanking Ford Madox Ford"—but when did this really begin? Well!

Sheryl Sandberg Leaves Work at 5:30 Every Day — And You Should Toomashable.com/2012/04/05/she…

— Caitrin O'Sullivan (@CaitrinO) April 9, 2012

"I mean honestly, people, if you don’t have a rich husband and a job that’s willing to be flexible with your hours, it’s entirely your fault." Oh sure. Though I'm pretty sure the Facebook COO is far richer by now than her husband. Anyway, I'll be leaving work today at 4:30 p.m., so you know, watch my moves, people.