There are many animal rights groups around the world such as PETA and others.
While it is pretty obvious that most people agree that animals (even livestock and farm animals) should be cared for and treated humanely, some people get a little bit overzealous and take it to the extremes.
In this video, animal rights activists stormed an industrial duck farm and slaughterhouse, in a protest and attempt to free the animals and have the facility shut down. In a not-so-well thought-out move, they decided that using locks around their necks and fastening them to the slaughter line machine was the best way to halt the killing of the animals. They almost instantly found out, however, that it was a very dumb idea.