A disturbed childhood could also cause such brutal behavioural traits.
This math does not work out.
In one of those cases, the boy had committed sexual intercourse with two calves; where one calf died during the act.
Until one lonely, troopless male was observed attempting to bang two of them.
So we keep track of every calf indirectly spawned by the loins of our bulls.
The vet found bodily fluids inside the horse.