I loaded a 10 gauge shell with dried corn and bacon grease to get the neighbors dog to leave our chickens alone. Didn't harm the dog but he never left his yard again. When he went over the fence his white rump was specled with black and the gun smelled delicious. popcorn and bacon.
I have seen flechettes, beach sand, pea gravel, rock salt, steel shavings, marbles and wooden beads tried by other people and most were ineffective. The only guns I have seen damaged from these experiments shot wax slugs "bulged barrel', and cut shells,'muzzle peeled back like a banana'. They should have used cylinder bore guns.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.