A Type D personality is distressed, Type D's have a negative outlook towards life and are pessimistic. A small event that is not even noticed by type B can ruin type D's day. Type D personalities are more subject to depression than other personality types.
For most of human history, horses were seen as prey to be hunted for sustenance. During the late Pleistocene, around 55,000 years ago, Neanderthals scavenged off of horse carcasses and made occasional kills of their own.
When horse slaughter isn't an option in the United States, horses are transported out of the country to be slaughtered. This is a problem because the USDA has no jurisdiction in other countries, and has no power to make sure that horses are transported and slaughtered in a humane manner.: Approximately 1 to 2% of the U.S. equine population is slaughtered each year. That number has not changed since horse slaughter in this country ceased with the closure of the last slaughter house in 2007.