On making a big deal about something that turns out to be not a big deal at all.
So, I raised the price of my book and wrote an emotional, deeply thought out blog post explaining why I thought I needed to do this, made up a discount code to knock the price down again, and then agonized over "should I have done this? People will hate me!".
And then the new price went live on Amazon. And Amazon, as is their right, had decided to mark down my book from the list price. And their sale price was lower than the original price of my book, but they take that out of their cut - so I still get paid more while the book price effectively stays the same.
I was so worried, and God had this covered (through the kind folks at Amazon).