This thread is absolutely hilarious.

I hunt on a family friend's multi-hundred acre farm, and he has a rather large herd of cows and a few bulls that roam free on the land. They tend to stay either in the corn fields, in the winter, or near one of the various barns. Typically I hunt out of one of these barns, because they offer protection from the wind,a blind effect, and a window or hole in the wall to pop my rifle out of.

On my most recent excursion the owner had moved a piece of equipment in front of my hole, about four feet from the wall. I couldn't complain, it wasn't my barn, and it was a private farm to hunt on. I crouched, cramped in sub-freezing weather, in front of the hole, propping up my rifle. The herd had been moving around the barn, their mooing and munching was pretty loud. I sort of saw this as an advantage, their noises covering up most of my quieter noises. The deer were used to the cows at this point.

After about an hour and a half of not moving in the cold, I had mostly forgotten about theherd, and Ifelt a bit... uncomfortable, to say the least. I started to shift my weight backward to put my other leg underneath me. As soon as I moved a big cow RIGHT next to me outside thebarn entrancelet out a loud disgruntled moo and stamped the ground, and stared at me. Having forgotten about them, focusing on the hillside outside of themakeshift window,this scared the Holy Bajesus out of me! I fell back, my head and rifle hitting the machinery behind me. Now I had a pissed off cow five feet away, a bump on my head, and that little episode probably scared all the deer away!