Originally Posted by InternetPeople
The only folks who needed to be fooled into action by Coulson's death were the Avengers. Coulson didn't need to fool the EMT's or doctors, or even Agent Hill.
The supposed spoiler specifically stated that Coulson held his breath in order to fake his death. None of the Avengers even saw his body after he died, so he wasn't holding his breath to fake them out. The only people he would have been trying to fool would have been the medical staff who treated him or handled his body. As any number of us have noted, holding one's breath isn't going to trick trained first responders, doctors or nurses.