It's been reported on the news that a woman has been trampled to death by a herd of cows while she was taking her dogs for a walk.
I once had a scary experience with cows when I was walking with friends in the Peak District and we were cornered in a field by about a dozen of them and had to hastily scramble over a dry stone wall, partially demolishing it in the process.
freeasthewind
Never thought cows could be scary but now that you mention it