They should take up hunting with a muzzleloader. They'd learn to pick their shots.
Got a buddy that's the same way. Really quick to pull the trigger, then usually empties the gun.
I had a line of 7 does walk past me last evening. I thought I could take the last one in line, but missed. Between 120 to 150 yds away, there was some brush/branches between us and they never stopped walking. I think the bullet hit something and deflected - no hair or blood at all (6" of snow on the ground), and I saw them all run off 20 minutes later when I went to check for any sign of a hit. Muzzleloader was resting on shooting sticks, I was seated in a chair. It felt right when the trigger broke, I was suprised she didn't go down.
Tomorrow evening I'll be out again.