There's a lot to the story that's not being told; for one, what kind of shot was he shooting in the shotgun? There is a world of difference between a load of #8's and a load of 00 buck. Even with a 10 ga.; #8's wouldn't have an effective range of over, say 60 yards. How close was the plane, and how close could it have been? If it was within 100 yards, it was pretty darn close. Spray planes are pretty scary, and you never know what they are spraying, especially if they are flying over your house. We lost all our baby chicks when a plane spraying wheat made passes over our house; they were all dead within 2 or 3 hours. Made us wonder if we were OK.