Oh,.... you poor misinformed boy. You just haven't hunted long enough and you're believing too much of that hype and PR that Mmmmmmmmmm.... MMMMMMmmmmm..... MMMMMMMMMMMmmmmmmmmmmm...(well,..you know who) puts out.

First scenerio I would probably wait and see which way he goes. If it looks like he might come closer I'll wait. If not I shoot. Second scenerio, I don't grunt to stop any deer. I shoot if it's a casual walk. I just apply the lead and let it go. A walking deer doesn't jump like one standing still. I doubt most of them pick up the bow sound as danger until it's too late. If he's stepping out with purpose I'm not even raising the bow.