Oh, how dreadful. Doctors in Peru amputated a guy's foot, then checked it out and noticed they'd amputated the wrong one. So they still needed to amputate the one they meant to take in the first place.
This is a hideous accident. How terrible. I thought they went through various precautions to make sure that didn't happen. I know I would be checking and triple checking the whole thing before anything so final was done.
The family, according to the article, will sue. To which I would say, "Ya think???"
In this case they definitely have a leg to stand on.