Abandoned Zone.

"I then put my gun on the dog's head and close my eyes. And then I pull the trigger. The dog goes limp, I then open my eyes, and I look down in tears filled with grief"

You stand up and walk away, but you can't help but feel guilty for taking the life of a poor animal. You feel as though you should have done more to save it, but you know that there was no way to get the boulder off its leg without causing it more pain. You walk on, your head down and your heart heavy.