Well I'm leaning towards thinking that I've just never noticed these vials. I'm usually yapping away at the lady who pokes me and trying not to get caught looking at her chest so eyes towards the ceiling. I know for sure they have a whole big ziploc bag of stuff that they take away after they are done with me and I do recall the girl that runs through the questionnaire sticking a pile of barcodes on things.
In my other post where I said - "Anything I have ever said on here about this subject comes from either info given to me by the nurse(?) in charge at the donation centre or from a phone call with blood.ca folks." I should have added "and what I saw for myself" cause it sounds like I missed a bunch of stuff.
Maybe
@Oldguyjiujitsu will get to the bottom of this next week. I think I heard if you kick the shit out of the biggest guy there to establish dominance the rest of them will probably tell you everything you want to know. (I could be wrong about this too though)