I was awakened at about four this morning by a scream which brought me out of the sack running. It was loud and close. It seemed to be coming from the back and it seemed to be almost, but maybe not, human. I managed to put my hand through a lamp shade and nearly slip on a rug before I got a light turned on on the back porch, but, of course, all I could see was the porch and the screens. I managed to get the front light on and saw nothing so I went out through the garage and saw nothing. After a minute or so I heard the sound again some distance away and then a third time far away. I have no idea what it could have been other than a mountain lion. This happened near the corner of 99th and Boswell.