How did this security breach occur?

[peuce]

Makes you wonder how many naughty things DON't fall out of a bag ??

If you could work out the chances of:

1. Someone taking a gun onboard
2. ANYTHING falling out of a carry-on bag
3. That anything being a gun
4. The bag having been on top
5. The hostie seeing it

Surely the odds must be astronomical ... unless .... there are hundreds of guns smuggled on board each day. That would lower the odds... but still huge.

So, where am I going with this? Buggered if I know ...