A] One can die from a bullet in the kneecap. The popliteal artery runs behind the kneecap, and if it is severed by either the bullet itself or bone fragments, a person can quickly bleed to death. Obviously, he didn't, but wounds can become infected, especially when the victim is surrounded by rotting corpses. Some virulent bacteria, of which corpses are an excellent source, can kill within a few days. B] It was three days, not two. Also, under good conditions, an adult human can survive for up to a week without any water. A small child, however, can become dehydrated enough to die within 2-3 days. This man was 4 at the time. Furthermore, one of the symptoms of dehydration is delirium. Not only was he a kid, he was a kid who wasn't even using a 4-year-old level of judgement. C] Just because there is documentation of something happening does not mean that it always happens. People are amazed when someone survives for a week under rubble because it is RARE. Most victims of natural disasters who are buried under rubble die. D] The "maximum number of days" varies widely due to conditions such as age, health, oxygen availability, and other injuries, but the longest recorded was 10 days (the person drank water dripping from a rock). However, a seriously injured child had a relatively low probability of survival. The childhood situation the makers of this show constructed was quite plausible. This, of course, does not justify the man's actions as an adult. He was a selfish bastard, and I am not defending him, just debunking your information.

What is this ingury, of which you speak? Is it like pouring salt on a lound?

I don't agree on moral grounds. Life is not something we buy, although one could say it is. However, this one is a no brainier, you can't buy body organs except for kidneys in Iran.