If the deer was domesticated, it would relish harvested cured bud, and would most likely take it from your hand. In the wild you would not get that close.
I've seen outdoor crops decimated by grazing animals - where I am you have to watch the deer, goats, kangaroos, possums, wallabies, wombats, and emus. They all love weed, fresh or dried!
My boyfriend walks 3 hours to get to work almost every day, and to make it a little easier he usually rolls a joint and packs a bowl for his long walk. Last summer he was sitting by some rail road tracks behind his place of work to finish smoking a bowl before he went in, and he noticed there was a deer standing near him and that the wind was blowing his hits in the deers direction. The deer stuck around for the rest of the bowl and then booked off. He got home and started complaining about how that deer used him for his weed.