Although there are many shots that CAN kill a deer, we try to preach only broadside and quartering away shots. Too much can and does go wrong already.
Sure, folks have killed them shooting for other spots. We have, and will continue to argue the finer points till we all die.
I find however, after teaching hunters education and bowhunter education for a long time, the biggest majority of the students I get, young, and old, don't really know where the pieces and parts of a deer actually are.
Example, everybody says aim behind the "shoulder" and they point to what would be the elbow on the deer. That puts your arrow in the back half of the lungs before you even shoot, and if you don't hit exactly where you aimed, you just may miss lungs completely.
Terry has some training. . I mean. . practicing aids / threads at the top of the POW WOW. They are great for refreshing if you really do already know, and an eye opener if you really aren't certain.
ChuckC