@ossobuco,
Fascinating, that was the description of why Napoleon lost his Imperial Guard at Waterloo: the horses of the "Immortels" were so tightly deployed in such a very narrow front that some horses' hooves never touched the ground. They were carried on the sides of cavalry on either side of them.
On the subject of Walmart - truly I find incredible, and profoundly contemptible, the opinionating here before anyone has read the autopsy results on how the temporary security man died. He weighed over 300 pounds and was dead of a heart attact before he touched the ground.
He didn't die of getting trampled under; if anything, the people who stepped over him have a claim against WalMart for permitting this obese dead body to block the entranceway. Watch the DA's office announcements - some of these shoppers have already sued; and most of all, get FACTS before opinionating!