read a book about using a bottle of water to draw in deer by slowly pouring it out on the ground and using a grunt tube while doing it to recreate the sound of an actual deer urinating while grunting,and pulls in even the shyest of call shy deer by making them think that there is an actual deer in the area making the noises.anybody ever used it and does it work.read it online in a book I bought called"deer hunting for the clueless"got it on my computer from amazon