People whose duties require them to handle unfamiliar firearms NEED to be taught to not screw with any gun you don't know the manual of arms for. Everyone in the area would be safer if the gun was considered loaded (and possibly defective) and to immediately place it in a container and remove it to a safe handling area. The boarding area of an airport is not a safe handling area. (especially if you don't really know what you're doing)
I used to watch "Cops" years ago and be shocked watching so many street cops attempt to unload a weapon that they confiscated while pointing it at every person in the scene while fumbling with slides and levers and buttons while their partners would crowd in around them offering suggestions. Much more money needs to be allocated for LEO training in today's world. If you were not taught proper gunhandling from your father or your drill sergeant or someone knowledgeable then your are playing with real fire.