Anger is a negative emotion but if used wisely it can result in something positive. Has YOUR anger ever done so? What specifically?

If you are a low keyed personality that never flies off the handle, you can catch people off guard and throw them into shock with a good, well placed, and well aimed temper tantrum. I seriously believe in a righteous anger that is appropriate and can accomplish much. This is the type of anger that you can display, and yet not be wrong. It is not a violent, out of control anger that causes harm.