I have been tinkering around with Deer Cocane (essentially the same mixture) for the last two seasons and have observed the exact same phenomena.

nub,

I would be curious as to why you think this may be hurting the animals. From my information that "addicted to it" issue has no supporting material. Those mixtures are just salt, sugar, etc... not some addictive drug....again, at least in what sources/information that I could dig up. (no pun intended )