I can't donate Blood for catspaw, as just a week before his problems started I was in the bus doing my donation. I make donating blood a habbit, something I do every time I can do it, but it means I'm not elligable for a few weeks yet.
I hate donating blood, but it is the right thing to do, and so I do it.
So please people, don't think of it as donating blood for catspaw, even though he clearly needs it, and if my blood happens to be amount the pints he has received I'm happy to let him have it. Think of it has something for humanity, something for life. Something to do at least once a year, and if you can do so four or more times a year.