I gave blood today, halfway through, I started feeling light headed, then I got extremely light-headed... then I passed the fuck out.

Woke up to them standing around me, shaking me, trying to wake me up. I was just thinking "What? I'm not in my bed?"... then I find out that they need even more blood. Had gotten a whole unit, but it'd have to be thrown away if they didn't get 5 tubes of blood for testing.

So, they had me rest for a bit, then poked the other arm... hurt like hell.

Oh well, I got a t-shirt and the satisfaction of knowing that I helped.