 So, fixed momentary DRO. Fixed momentary, yeah, fixed momentary DRO. Okay. Yeah? It's not FI momentary, it's just fixed. FFMDRO. It's FFMDRO. Which is almost like a federal. No. We're getting into drugs now. Yeah. Alright, fixed momentary DRO. So what I'd like for you to think about is differential reinforcement of the behavior through a fixed momentary time sampling kind of procedure, right? So you're going to think of a high-frequency behavior, like someone doing this little class room, go hard and make it and teach you anything, you're going to look every 30 seconds and be like, hey, nice job not doing that. There you go.