Joint Locks in Jujitsu?

In jujitsu, you need to develop the mental awareness of what your body is doing. When your body starts tensing up and you are using your strength, it's a signal that you're not doing technique properly. So i try to be aware of this. And if i ever get myself into a position where i realize, man, i'm squeezing really hard here, whether it's a submission or not,. It's a way for me to reflect and understand that there's a better way to do what i'm doing.