Rob,
I fully understand what you are talking about. I had 3 small bucks at 15 yards for over 20 minutes. I thought they were relaxed when the next thing I know they are headed into the brush at a high rate of speed. Never did figure out what spooked them. I also never seen tree rats run deer off a feeder until I came here.
Hoping to make it back for next years hunt just have to wait for the vets to commit first to see what is left over.
Even though it was a slower year than usual I had a blast.