This evening, about an hour before dark, I called in a fat spike buck with a low slow bleat.
I was in a tree stand and my twelve yr old son was in a different tree about ten yards away. We could see a deer moving through open timber, and he came in at a steady trot. At fifteen yards he stood for a minute or two but he was quartering towards my son and offered no shot. The deer got nervous because it was fairly open terrain and I think he knew he should be able to see the "deer" that made the bleat. He turned and trotted away, and continued on the way he was going.
His body size and actions make me think he was a 2 yr old, and not the usual 1.5 yr old spike.
I have called in deer before, but not very often.