The first time I was a 10-year-old playing competitive soccer as a keeper. The other team's forward slipped behind the defense creating a 1v1 with me. I came out, went to the ground and was able to grab the ball a half second before he took the shot.

Unfortunately, my head replaced the space the ball was previously in, and the kid let loose on my head. I was immediately unconscious. I am told I was out for several minutes. When I regained consciousness, I could not move my legs. 911 was called, the ambulance drove out on the field and I was loaded and taken to the hospital.

After several hours in the hospital, I slowly regained my feeling and movement in my legs, and was eventually released and made a full recovery. That was the only game my team won that year.

When I was in my first semester at BYU, I was playing ultimate frisbee intramurals. We had a good team and were playing another really good team. I was guarding a guy who was about 6'4" and 250. I was 6'2" and about 170 at the time. He was getting frustrated at his team's performance and to clear space threw and elbow into the side of my head, immediately knocking me out.

My team says I just dropped like a ragdoll. I was out for several minutes. The intramural officials dragged me off the field, still unconscious, so that the game could continue. I have no recollection of that day or the day after. I wound up in physical therapy for months because my sense of balance was so disrupted by the injury that I had a lot of difficulty just staying standing.

The third one was a direct result of the second time. About two months later, I was still having problems with my balance and I was in a remote part of the library doing research for a class project when I suddenly got dizzy and fell over hitting my head on a shelf as I went down. When I woke up, I was on the floor and had pulled down several books on top of me. I quietly and sheepishly put the books on the shelf and decided it was time to be done for the day.