Niko is here, he's a normal (for him) amount of sleep-deprived, and he's happy to be doing something where life isn't hanging in the balance. He's great at doing blood draws, and his usual schtick is to distract people with jokes or yapping so that they don't notice when the needles go in.

He also donates blood and only gets a little woozy. He doesn't faint but he probably shouldn't be poking anyone else for a few minutes. and this happens.

EDIT: I guess I lied.