Hilarious but true,
You can still get onto a Dash 8/Saab at a substantial number of Airports with no security whatsoever.
Not to mention for example the two strands of wire surrounding Thangool Aerodrome,where a QF Dash 8 comes in but you can wander around the tarmac after stepping through the fence dividing the Aerodrome from the surrounding cow paddocks. You can even wander around the plane, look into the cargo hold, walk around a bit more, then casually step through the 'perimeter strand of wire' and be on your way..
This is just one example.