Ah! Now you keep adding more specs.....is this Srdjan's quesion or yours?,I'm not adding specs, I'm pointing out your assumptions. ;-)
But you're right, it's Srdjan's example, so I'll leave it to him.
These "but imagine if it's this" questions are more like fantasy-land.What I saw was that you already knew the answer before you knew anything about the customer.
Whatever. These discussions never go anywhere, do they?
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1