Is called " evil mad cows " or better " 34 bovine spongiform encephalopathy; to a degenerative disease that causes damage to the nervous system of the Bovidae and who can get it to humans through the consumption of their meat. To the animal sick are you says " vacaloca " because because of the deteriorating brain begins to have a behavior erratic and to violent.
In Colombia, specifically in Barranquilla and Santa Marta, get into a " vacaloca " It is tucked into a problem, in a mess or tangle.