How do you unlock the toilet from the outside?

Unlocking the toilet from the outside typically involves a specific mechanism designed for emergency situations. Lifting the lavatory sign and sliding the latch is the correct action because this method allows you to manually disengage the lock without having to enter the cabin or use complex mechanisms that may not be available during emergencies.

This procedure ensures that the toilet can be accessed quickly if needed, particularly in situations where someone may be in distress or if there are any operational emergencies. The lavatory sign acts both as an indicator of occupancy and includes the necessary locking mechanism that can be operated from the exterior.

Other methods, such as entering the cabin or pulling a handle, do not apply in this case, as they either do not address the need for external access or may require the user to have pre-existing entry rights. Pressing a button might suggest a more automated version of a locking mechanism, which is not typically used in the design of aircraft lavatory locks, thus highlighting the importance of manual intervention in the right circumstances.