Whenever I roll with an MMA guy, especially amateurs, it's clear they are training to crank the living hell out of the 5 or 6 subs they know, especially leglocks. So you get in this situation a lot where an MMA guy will grossly telegraph, say, a kneebar attempt, except that he will muscle the attempt like crazy and then will try to muscle a heel hook or toe hold when you break out of the kneebar. It's not hard to escape because they don't set it up, but then you also don't want to mess around with it because they will CRANK it if they even have it for a second. I guess it trains you to be more committed to your sub defense and not linger in the hold, but still makes you wonder about the danger of that MMA mentality.