I recently run out of blood (frozen). Until the fall, I would want to do some more training. Therefore, I tried butchers who used to sell blood (if you gave 'em sufficient notice). The one I contacted said, they wouldn't get any from the slaughterhouses anymore (no matter if it is for human consumption or anything else).
Anyone knows a butcher in North York who still gets their hands on some (0.5 - 2 liters)?