For the purpose of this question I'm going to strictly stick to using vitae to mean vampiric blood, like a vampire has in its blood pool, and blood to mean ordinary human blood.
If a Ghoul character manages to capture a vampire npc and decides to drain him of vitae how much do they get?
I think it would be the amount of vitae in the vampire's blood pool but I'm wondering if a vampire has extra vitae in it's veins that can be extracted?
The reasoning is as follows - Ghouls apparently contain ten blood and two vitae (for a ghoul with a typical blood pool) because they need their human blood to be alive but can store vitae as well (somehow). So do vampires contain extra blood and/or vitae to allow them to function?
Phrased another way, is there a minimum amount of blood or vitae in a vampires veins simply to allow them to function or are they 'dry' inside (unless they've spent vitae to 'appear human')?