[ He lifts both his eyebrows up a little, in mild surprise. ]

It doesn't seem overly protective. Even if you weren't concerned about the safety of your blood bank clients, the security and safety of the entire hospital is at risk if people start trying to kill one another, here.

If nothing else people who might otherwise seek medical care start avoiding it, or there's structural damage.

[ He has other thoughts about this but he can wait to move on them. Right now he's a little more willing to be... more personal. ]

Does the rate you expend blood influence how frequently or how much blood you need?