Has to be a sick feeling, wounding the animal you hunt is never enjoyable. However, don't dwell on it. You'll nail him next time and some days $hit just happens. This is the reason I immediately chamber another shell after the shot and keep the sights on them for a few seconds after they hit the ground, and while walking to the bird keep my gun in a ready position just in case. Haven't had it happen to me yet in eleven years of turkey hunting, but I've heard enough stories like these to make me careful about it.