Not to be rude, but squirrel, ground hog, deer, possum, fox, or anteater for all i care, you should never take a shot on any animal that you are uncertin about.... whether that is personal skill or the position of the animal, you should never take a shot that has a low percentage or that you are uncertin about.. If it is so dark that you can't tell that a deer is quartering too, then you probably dont need to shoot at it. If you look at the animals feet it is easy to determine the angle of the animal. These are all things that we learn as we go. But always remember, the game we hunt is to be respected, you should hold the life which you intend to take when you draw the string in high regard. Many times people get nervous and treat hunting as a game, its made to be enjoyed but it is a real life that you are about to take, not just some computerized recreation. Im not fussing or trying to be a "Trad Police" at all, but stuff like that doesnt fly at my camp, regardless of age or expirence level.