A few times drew something that really disturbed me. I have a folder where I put my drawing. When this happens I put them in the folder and close it. It is kind of my way of saying... Its out and separate from ME. Some of these drawing I will then share in therapy if it still bothers me.
One thing I've noticed is that just like with verbal communication my self preservation instinct still kicks in. I've not been able to draw the really bad images in my head.