I would have needed to do the same thing in October when I had a bedroom to ATL. I was in the bathroom when the door handle fell off. The key piece was on the outside. Lucky for me, my husband was with me on that trip and he knew what to do. After he got me out we just put the handle on backwards so the person in the bathroom always had the key element to get out. Bathrooms need call buttons too.
Linda, I am sure I've seen call buttons in the bathrooms! Seemed like a really good idea at the time, as medical emergencies can occur in bathrooms, and a person might need help from the Attendant. Alan, can you set us straight on this? Are there call buttons in the bathrooms, if so, on which (or all) equipment?
Also, I think I used the call button once when the SCA asked us to call him that way to put the beds down, and one other time before I realized that an if an SCA was nowhere to be found, said SCA was not (insert British expletive here) likely to see the light outside my door.