 I know I always do that with my face. I suppose it's to avoid things. Ha ha, avoidance contingency, you get it, bad joke. So, really bad joke. So, ha, you know what? I figured out a wonderful avoidance contingency. As long as I tell jokes to the camera and not to real people, I never hear the non laughter. So, it just, it actually works for an example if you think about it hard enough. So, avoidance contingency, it's when you engage and basically it's when a behavior is maintained through negative reinforcement and you either avoid altogether or delay or postpone the presentation of a particular stimulus. Oftentimes we would call that stimulus aversive but you're kind of reading into things a bit when you do that but it's a safe-ish bet, right? So that you avoid or postpone or delay aversive stimuli. However, there's a lot of reasons why we don't want to necessarily assume a version but anyway, gosh, I'm just talking myself into a hole here and I've got less than a minute to go. So, avoidance contingencies, when you're avoiding things or postponing them. That's all there's to it. See you, bye.