Im not saying pretend a hijack could not happen to you so dont talk about it.
What i dont want to see is a better briefed hijacker ,i do have in mind an agressive defence of my aircraft in the event of hijack but i wont discuss this with eny one outside the company.
I am sure that if you get together with fellow crew members you to can come up with tactics to defend your selfs but dont publish them and give your "edge" to the hijacker.
The industry had a policy of "do what the hijackers say" befor sept 11 and this set of hijackers used the weekness in that policy ruthlesly and to maximum efect in this case knowlage was power ,if you reaction to a hijack situation is agressive and not predicted by the hijackers then you maintain your "edge".
To repeat myself it is stupid to discuss the anti hijack actions that you might employ on an open forum.