Hillary Clinton is still living with intense regret over her devastating 2016 election loss and to help herself cope, she has categorized them all in her upcoming memoir What Happened due out in September. Of course, we all know “what happened,” but in the first excerpt from the book, Clinton reveals she may have missed an opportunity that could’ve turned things around for her, at least in her mind.

This “had I only” moment occurred during the second presidential debate. Clinton recalls feeling her skin crawl as Donald Trump seemed to hover ominously behind her while she answered a question. Media and online voices bashed Trump for this supposed misogynistic power move; memes were created to up the creep factor, portraying Trump as a serial killer. But in reality, he was simply standing in front of his own podium. She had crossed into his territory.

"My skin crawled," Clinton recalls in the book. "It was one of those moments where you wish you could hit pause and ask everyone watching 'well, what would you do?'"

So, what did she really want to say in that moment?

“Back up, you creep, get away from me.”

But she’s a seasoned professional politician and kept her composure — a real heroic kind of restraint, according to her own words:

It certainly would have been better TV. Maybe I have over-learned the lesson of staying calm, biting my tongue, digging my finger nails into a clenched fist, smiling all the while, determined to present a composed face to the world.

Oh, the bravery of such composure!

Clinton says the book is “about moments from the campaign that I wish I could go back and do over.” But mostly, it’s sour grapes: “I couldn't get the job done. And I’ll have to live with that for the rest of my life."