You must live in a different country than I do. I have never seen terrified animals left overnight in any pens. In fact, all the animals had to be killed that were in the pens that day. Later in the night other cattle would be delivered into freshly cleaned pens. I don't think any livestock can reason enough to know what is about to happen.
There's nothing like the Rockies in the springtime... Nothing like the freedom in the air... And there ain't nothing better than draggin calves to the fire and there's nothing like the smell of burning hair. -Brenn Hill