I just saw the following story.

http://24hour.newsobserver.com/24hour/nation/story/473138p-3781955c.html

An 89 year old man was operating a tractor with his 80 year
old wife. She was standing behind the tractor when his foot
slipped off the clutch and ran her over. He fell when he got
off the tractor. He usually required assistance to walk. It
took him 23 hours to crawl 400 feet to his house to call for
help.

What a horrible accident....

Later,
Dan McCarty