Here's a brief visualization technique you can use to release the anger inside you that can surface when you have conflict with someone.  It can be done on the spot, or later. It's especially suitable if the person causing the anger is more powerful than you, or if you feel this person has emotional power over you, says speaker Gini Graham Scott. In this visualization, you will make that person seem smaller and, therefore, less powerful and less important to you.

Start by seeing yourself talking to this person.  See him doing whatever makes you angry.

Then, as you talk, see this person shrinking in size.  Notice his voice becoming fainter and fainter.

Meanwhile, you are becoming stronger and stronger and more powerful, while this person is becoming less and less powerful and important in your life.

Then, see yourself saying good-bye and leaving this tiny person, feeling very powerful within yourself.

Finally, let go of this image and return to your everyday activities.

~from Maat's Book of Shadows