The Peculiar Noise Emanating From a Suitcase

As they stood outside of the luggage department, they were hearing sounds that gave them cause for concern.

They were able to zero in on the specific bags that were making the noise as soon as they were in close proximity to the baggage. As soon as they identified the item that was most likely responsible for producing the sound, they made the decision to cautiously open the suitcase. After it was unlocked, there was a collective sigh from everyone.