I have had the same thing happen as Rod. Miss a buck and he came right back to the arrow for a second shot. Actually is pretty funny when you are all pumped up from the first shot.

I shot a small buck one time with a 20ga slug about 15 yard out of a tree stand. 1st. shot buck didn't even flinch, or move. It was looking around trying to figure out what went bang. Took a second shot and it buckled up on the spot. Went to clean it and of course 2 holes.