So HS, the point is? If the FD is rushed, you are in an aeroplane of dead people. What harm does a gun do then? Nobody can rush the FD without having to get a Cabin Crew member out of the way first. It gives you that instant when they can then find a rather large barrel pointing at them. Part of the responsibility of carrying a weapon is to prevent it needlessly being lost. It must be quickly available when needed. When you talk of the FD being rushed, you are on a last chance defence. The only viable alternative is a self destruct button.