I grew up on a farm, where there were pedigree Ayrshire cows and the Ayrshire bull is one of the dairy breeds that are not allowed in fields with public access. I do not think I ever had any trouble with these bulls, I often had the job of feeding in the yards etc. but I went to boarding school at a tender young age. The school, occupying an old manorial type building, set on a hill and was adjacent to a farm, the fields surrounded the school playing fields and this was where I first came across a truly terrifying bull. It was a dairy Friesian and if a ball went out of play and landed in the surrounding agricultural pastures it was a life or death dash to retrieve it.
Through 2 decades of a farming career I do not think I have been overly troubled by a number of bulls of different breeds, but the Farmer Owen's bull was in a league of his own. A later met the son of farmer Owen, as a dealer in straw and other agricultural products, when I learnt of his home, I mentioned this bull and he confirmed it that it terrorised all who had any dealing with it.
Only a few years ago I met someone around my age, who had grown up in the village near my old school, he had gone to the village school, which was at the bottom of the hill. The school play ground was dug into the hillside, a fence was at the top of the wall, formed by this excavation and farmer Owen's field was on the other side. We soon got to reminisce about the notoriously fierce bull and I learnt that some years prior to his year, the elder pupils at the school had taken to using the bulls rather magnificent scrotal sack as a catapult target, as it was often presented to them dangling at 11 to 2 o'clock high above the school playground.
It is perhaps not surprising that this animal had a vendetta out for humanoids large or small. though it has taken some sixty or so years to find out the real reason for the ill humour of this poor animal.