"Angry" cows and my depression

I was starting to enjoy life and get over my suicidal feelings, I was even looking forward to being alive in 30 years, regardless of S.A.R.S., West Nile Virus, Meningitis, Terrorism and the new Bush politics/economy. So now I stopped focusing on looking forward to the future and live each day by itself. So, that cows get angry* and threaten our food supply *, I don't feel that there really is anything extra for me to lose sleep over, but does anybody know if it kills you right away or does it kill you slowly?



*kidding, I know their brain is effected.