There's a moment that happens to every behavior analyst, usually around 2 AM when you can't sleep: you realize the intervention you've been implementing with complete fidelity for the past month isn't working. The data doesn't lie, and what it's telling you is that despite your best efforts, you're not helping this kid. And then comes the spiral: Did I choose the wrong procedure? Is my functional assessment wrong? Am I missing something obvious? Should I have seen this coming