[She notices, and it's part of why she actually wanted Seras to come down for this, instead of just taking the blood to her, which would've been just as easy.

Steph wants to see how her control is.

Which is probably stupid, when she's using herself as the experiment/bait, and the resurrection technology is down, but sometimes she makes bad decisions.]

Since we're thinking about keeping blood on hand for emergencies, we might be able to give you guys the leftovers when it expires.

[That way nothing goes to waste.]

But hey, look, if things ever get desperate for any reason, you come to me, yeah? I know I said there should be several weeks between donations, but I know what my body can handle, so if ever need more...

[Steph would rather make herself a little sick from blood loss for a couple days, rather than having hungry vampires on the loose.]