Skysista
Personal opinion, but I feel more threatened by the thought of someone smoking in the loos and setting the aircraft on fire.
History suggests that this is a more probable event and it is potentially lethal.
Of course, the ammunition should not have got on board, but unless someone had the intent to set it off.....
Then again, someone could carry a lighter with the express intent of setting the loos on fire, a bottle of Smirnoff would also greatly add to the conflagration.
So how paranoid are we all feeling?