The "zombie in a well" situation is a perfect example of why people need to learn to accept a loss. The cons outweighed the pros massively, but for some stupid reason (to give viewers a zombie kill) they decided to take the risk. First of all, there are multiple wells on the property. Attempting to save this specific one wasn't required. Secondly, where's the logic in thinking that the water isn't already contaminated? The undead figure has been soaking in the water for quite some time (even if it's "clean" I'm not drinking that zombie-flavored crap), and we can clearly see blood dripping from its mouth and stains of the blood elsewhere on its body. But no, they want that zombie out. So let's send one of our best scouts down there to retrieve the helpless zombie. A few stupid minutes later and the zombie is pulled out, only to have its body rip in half and spill the gushy contents back into the well. Bravo, idiots. What did they hopefully learn from this? To walk away from a loss, especially when it's so insignificant.