The Writer's Write blog has the goods on the guy who missed out on the chance to buy the first Harry Potter book. Turns out his father missed Goodnight Moon, too. As Bugs Bunny would say, "Wotta Maroon!"
Here's a tidbit:
At lunch some time later I overheard our chief executive talking about the success of the Rowling book. So I happened to mention, with a chuckle, that we'd had a chance to buy it. Why is it that one remembers a long pause? "Chief?" I said, though to this day I don't know why, as no one called him that. "You what?" he asked, his voice trembling slightly. "May I speak with you in my office?"
The editor in question has moved on to another line of work.