I did, a$$wipe. http://www.foxnews.com/us/2015/07/27/landscaper-gets-year-in-jail-for-running-over-ducklings-with-lawnmower/
no reference at all to backing up or laughing. What link are you looking it.
http://www.wftv.com/news/news/national/mowing-down-nine-baby-ducks-gets-acreage-man-year-/nm6nw/
http://myfox8.com/2015/07/26/man-gets-1-year-for-running-nine-baby-ducks-with-lawnmower/
I don't rely on only one source for my news.