Massive fire hazard. The front door of the building is able to be double locked from the outside. It was double locked from the outside by another Air BNB guest so we were locked inside of the building with ZERO means of exiting. The Host of the building had to come after THIRTY FIVE minutes of contacting her to unlock the door so we could exit the building. Everyone was very friendly but this safety hazard is unacceptable and a massive liability and ruined our stay due to the stress of worrying if we can even exit the building we were paying to stay in