When i was doing my apprenticeship a fellow aprentice spent 3 years building a kit car, mini marcos, took it out for a first drive, a herd of cows spooked in a field ran towards fence and straight over his car, destroyed the bodywork and i think some cows had to be killed.
Last summer had to cross a field with some cows on a cycle path, chatting to a few fellow cyclists, i pointed out they didnt like red as most of the riders were wearing red, they looked absolutely petrified when the cows started to get closer.
And totally off topic if attacked by an ostrich always raise one hand above the head and make a hand sign like an ostritch, the ostrich will think youre a bigger ostrich and walk away.