frontcheck:
just because you are flight deck why should you be Treated any differently?
The flight crew already has the plane as a weapon so why would they use a fluid to create a bomb ?
There is typically an axe in the cockpit for their use in emergencies - so its also pretty pointless to search the crew for sharp impliments.
And on some carriers the flight crew is armed for protection, and/or confiscates weapons from service personel travelling on the flight.
The topic of demeaning checks of flight crew in view of the passengers has been covered in great detail on the Rumours and News forum.
The whole point of why the flight crew should be exempt is that if you dont trust them with any of the above then you should not trust them to be in the cockpit in the first place.