Our EMDs have the same training, to tell people to leave their doors open. Before collapsing, he left the door on the latch as instructed so they could get in I've always found it odd that people who call that they can't walk or move are able to unlock the door and then go back to their bedroom. I think that if they are able to unlock the door, then why not wait outside or right inside the hallway. The extra exertion can't possibly be good.