I missed a doe once at about 15 yards.  The bad thing is there was another doe behind her that didn't take off when I shot at the first.  I swear she walked up to the EXACT same spot as the first one....I missed her to!!!

When I went back to traditional archery in 89 I killed the first two deer I shot at then missed the next 11, all over their back. Started shooting a lot of 3D, learning to pick a spot and seldom miss one now.

8 yds. missed an 8 point.
DR