The one doe I did spine went down like a bag of rocks and couldn't get up. I saw her struggle to get up several times and she couldn't moved, so I climbed out of my blind and slowly walked up to her bow drawn and aimed the entire time and released one more arrow at nearly point blank range. I wouldn't reccomend that if you weren't sure but I knew she wasn't getting up from watching her for about 30 seconds and wanted to make one final and quick shot. I would empty the quiver, though, if I had to. In fact, spined or not, I'd keep sending arrows as long as the deer was still standing and in range.