Many years ago I briefly studied Kung Fu with one of the great masters of the art who, at the time, was teaching in the San Fernando Valley of California. One of the things he stated was that the hardest opponent to face would be a big, powerful, untrained bully because he had no fighting pattern to counter. Another thing I learned was never get into a fight when you are angry.
If you get into a fight when you are angry, the anger will take over your mind. Rather than fighting instinctively based on your training, your actions will come from your rage. A lot of people think that it's good to get into a rage in order to prepare for a fight as it will increase your endorphins resulting in