“I had a deal when I was already counting my commission—and I’ll never ever do that again—and the whole deal almost blew up at the closing table over a wall sconce. Because a lightbulb didn’t work. It was nuts.” As Molly Deegan recounts this memory, it begins to play out as a cautionary tale for sellers across Long Island. She never says when this moment, as absurd as it might seem, occurred, but makes it clear that reality in realty can be very different from the folklore that has sprung up throughout the recent boom.