Flaboy, I agree, but no matter how calm they are, they always run out in my pasture like they are going to run though the fence. They usually stop about 2/3 of the way across and then start walking the fence line looking for an exit and shortly after that usually just start eating and settle down.
One thing for sure, if they are wild enough or spooked (pressured) they can go through (or over) just about anything.
I think it helps if you turn them in with some other cows also,
JMO
My brother used to haul cattle from Florida and he delivered some to Texas or Oklahoma one time and the ranch had the worse fencing he had ever seen and the man told him to back up to the gate and turn them lose. My brother told him that these cows were to wild and would run right through his fencing and keep running. The man told him he could handle the cows with his COWBOYS and he signed the release and my brother let them go and as he pulled away the cows had run through his fence and were still running as he drove off. (with COWBOYS in hot pursuit)