In the 3 years I've hunted geese, yes only 3 years, I have learned only one hard and fast fact about geese. THE GEESE ARE NEVER WRONG!!!! If they see something they don't like, they slide, flare, hold short, or just keep going. When birds don't finish, it is my humble opinion, that the problem is NOT the geese, it's the spread. It's to tight, to loose, not on the X, blinds exposed, spent shells out of the blind, someone peeked, decoys tipped over, etc, etc, etc. When I have birds slide or flare or whatever, I get out of the blind and try to find out WHY. Usually, I can spot at least one mistake we've made and the geese saw it as well. The birds tell you when you have a goof up. Once I discovered that the birds are NEVER WRONG!! My hunting success went way way way up. Good Luck Guys!!!