Hotdog,
I know what a pallet is and I know its location with regard to the bottles. I have seen LD containers jammed, broken and the damage that can cause. This is not a regular occurrence, but it is a far more common event than an O2 bottle uncontained failure. What is a more likely event, an O2 bottle rupture due to an unnoticed mechanical failure or an incorrectly loaded and strapped down pallet allowing whatever is on it to move? Cargo hold sidewall panel blowout panels get dislodged regularly, O2 bottle explosions do not.