dogs cant smell through liquids so therefore take yer dope and seal it inside wax because that will also hide the smell and have something in the wax to wiegh it down so it will stay submerged. put it in some type of container with liquid in it. the stronger the scent of the liquid the better. ammonia is real good for that because if the dogs get a smell of that theyre sense of smell will be off for 5 or 10 minutes.