Cows don't randomly develop brands on the order of 0.1% to 1% probability. There isn't a great analogy for this and your example, as well as the hyena one in a

Cows don't randomly develop brands on the order of 0.1% to 1% probability. There isn't a great analogy for this and your example, as well as the hyena one in another comment, are way overstating the case.