 A mixed schedule. As you might imagine, you take a couple of schedules and you mix them together. And you just turn those buggers up until you can make butter out of them. Then you put them in the oven for 350 for 15 minutes. And if you put a lot of butter in the oven for 350 for 15 minutes, you end up with a bunch of goo. I don't even know if it's separate. Brad's got me thinking about cooking. Great, now I can't think about mixed schedules. No, actually I can't. Mixed schedules are really simple. They're a compound schedule where you have two or more, four, two. Two or more, so four would work. So you have two or more schedules working, like operating concurrently. And you don't signal between them. They can just, they alternate. You go back and forth. You could be on a VI5 and an FR2 and a VI5 and an FR2 and an FR2 and an FR2 and a VI5 and an FR2. Reinforcers are delivered at any given moment for completing the current schedule that you're on or the phase of that piece of the schedule that you're on. So or the element, I guess I should say that's the correct term. So when you complete the element of the given schedule that you're on, doesn't matter which one it is, that's when you're in the reinforcers and you never signal between the different schedules which makes it a mixed schedule and it can be rather confusing but still kind of cool to tease the part, tease apart the effects of each schedule. There you go.