When I am training with someone difficult (who constantly corrects, or who corrects me when I am doing what sensei demonstrated), lately I find myself escalating the conflict by throwing the difficult partner harder, or being malicious when applying pins and locks.... But I don't want to incorporate this into my personality. I'd rather figure out how to control myself when people piss me off.
How normal is this? How do other people work through it?
Success does not teach. Failure does. Success might be sheer dumb luck. Tell your partner this, thank him for his concern, and inform him that you really need to fully experience your failures, without any interference intended to help you succeed.