We got locked in the building for over an hour, missing one train to Sintra where we were traveling to for the day and almost missing another one. No one could get in or out the door, even when using the keys to open the door from the outside. The host was very little help. We ended up having to unscrew the lock to get out and then screwing it back in. We also came home and were able to push the door to the building open rather than unlocking it. It wasn’t very safe or secure and needs to be fixed.