Why Does AI Jump on Allies?

This really has me confused and I'm wondering if anyone knows maybe why does an allied cat under control of AI through something like the cyborg set bonus think it's a good idea to use the movement action to jump on top of an allied cat as if it's doing something helpful?

I just healed up my fighter then my jester took an AI controlled turn and proceeded to use its 4 bonus movements to repeatedly jump directly on top of the fighter and downed him for the 12th time this run. I'm so confused.