Jointry and all that means we all work together a bit more now and RAF types do become a burden if they are fatties.
Now, that is simply sizeist! The fuller-figured should not be discriminated against! When I joined I thought that the Army acted as bearers for when us sub-Adonises became weary. Also, jointery is surely a matter of self-interested altrusim. Carry fattie if you need an airborne lift. Stack him with the sandbags or as food if you do not....