If he comes in like you said and stops, he gets to walk. Pretty simple and it doesn't matter how big or small the deer is.

I had a heavy 9 pointstanding broadside at 30 yards last week but the shot wasn't 100% clear due to a little brush in the way. Sure, I could have stuck an arrow in him, but I wasn't positive I could put it exactly where itneeded to be, so I let him walk. It was dissapointing, but there was no way I was gonna take a chance at wounding that deer by taking an iffy shot.

Believe it or not, there is more to being a hunter than keeping track of a body count or worse turning deer into walking pin cushions. You do not have to kill a deer to have a good time.