Reading all of this ...I have one question? How in the name of God did anybody ever kill a deer before all of this stuff came out? Could it be called "Marketing?" that without this scent killing stuff you won't be able to kill a deer. If this scent killing stuff is so good...why don't drug dealers just spray down drugs so a dog can't pickup the scent? In my experence and my humble opinion, I think in most cases the only things stuff such as this kills... is your wallet.