Could it be that you do in fact often have anger come up associated with certain issues, and that you've found that finding constructive ways to express it often works better for you than trying to avoid it or hide it and pretend it's not there?

If you were to find yourself in a place where anger wasn't coming up for you so much, you might not want to get stuck working at dredging up anger from somewhere just so that you'd have something to express.