You pull the emergency cord, and staff come running to your assistance, but unfortunately the door opens inwards onto you and those arriving on the scene cannot reach you! This is not good news.
It isn't ideal that the WC door opens inwards, but sometimes it has to be so, to prevent the door opening onto a busy public corridor. Hopefully designers will take this simple door release into consideration as they have at the Sage, Gateshead.
By fitting an emergency door release, this permits the door to open outwards, thus enabling staff to easily reach someone who is laying on the floor.