At 17, I enlisted in the Army, and I served three years in the Pacific. I was the First Mate of an Army ship in the Aleutians, which is why I am in a wheelchair. Due to hypothermia, I had a frozen knee, which developed rheumatoid arthritis. Misdiagnosis naturally, by the Army. It turned out to be osteoarthrosis, and I now have an artificial knee. But the knees are the only part of the anatomy I have never had to use in life.