On May 17, 2008, two Swedish women ran out onto a busy UK highway and were struck by a truck and a car, all in front of medical personnel. One of them would later wake up and resist the very police who were there to make sure she got the help she needed.
More than two years later, a BBC documentary details the story of how Sabina Eriksson and her sister Ursula, ended up in there. Sabina would later be charged with the stabbing murder of a local man, though her prison sentence for it stands at a mere 5 years. A short portion of the full documentary is shown below. It is a very eye-openeing case study about how medical emergency personnel always have to be vigilant about the potential dangers of a patient who is mentally unstable or on drugs.
Warning: this video, while it does not contain outright blood, is relatively graphic in nature.