A little bit of drift, but related to AF and carrying passengers.
I've done 20+ AF "missions" and my policy was not to carry anybody other than the "patient" and one carer, as a way to stay within the envelope (and minimise risk). I'm not available if, on inspection of the mission profile I believe there's someone along just for a trip to the big smoke i.e. an infant requiring specialist assessment, and the extended family are listed as Pax (I could be completely wrong of course).
I've learnt from doing one or two of these "extended family" missions the W+B quickly gets outside the envelope, and I'm aghast when I see the mission allocated to an AF pilot I know operating an identical A/C to mine, knowing the operation can only be overweight.