I bottlefed a couple this past spring, but I was busy building a handling facility in my barn so I really didn't spend near my the amount of time with the bottlefeds that I would have liked to. I would go in, feed them, stimulate them, then walk out. In other years I would feed, then spend at least ten minutes with them, in addition to visiting them often just to pet them and play with them. I came to no surprise, that This year yielded the "wildest" set of bottlefeds I ever had. Just this morning I pet a mother raised doe fawn on the nose, while my two bottlefeds stood 10 feet away. I realized that I am much better off not bottle feeding, versus bottle feeding and not giving up enough time to get the fawns really comfortable around me. My deer are all tame, because I am around them daily for feeding and giving treats. I am sure I will always have my deer tame enough to completely eliminate bottle feeding provided I don't change my daily feeding routines. I run chainsaws, tractors, mowers, and even shoot .22 and shotguns (pest control) in my pens quite often, my fawns are used to every human noise from the day they are born. I even allow my 4 dogs to run freely everywhere they want to in my deer pens, my dogs all grew up with the deer and to them deer are no more out of the ordinary than me or my family, I think time spent in pens is the most important factor in an all around tame herd.