wow wow wow... theres a big difference between donating BLOOD (wich here in the usa we dont get paid for)
and "donating" blood PLASMA (what we get paid for).
when you go to a local blood drive they take all your blood
when you got give plasma they pump it out, separate the plasma from the rest of the blood, and pump the shit the dont need back in.
i think a few of you might be getting these things mixed up