So if someone walks up in front of you, that gives you the right to shoot them? My understanding is that Wittington did not come up in front of Cheney, but was rejoining the party. Cheney, in following the quail which had just busted cover, swung the gun and fired, shooting his friend. Having shot quail, they move fast, and fly low. But YOU still have the responsibility to NOT shoot someone else in your party.