We witnessed a drama at the Paris/Beauvais Airport while awaiting our flight back to Scotland.
An unattended bag sat alone in the middle of the check-in area and, after an urgent announcement for "the owner to collect it IMMEDIATELY", there was shouting from uniformed guards to “STAND BACK EVERYONE” and two more police arrived on the scene.
The poor bag was approached with caution and the contents tipped out gingerly. It seemed quite an innocent bag and eventually was taken into custody.
My imagined scenario was that some poor passenger had put it down and thought it had gone on the conveyer belt and walked away, absent mindedly, oblivious to the commotion it had caused.