Talk:Jules Louden/@comment-174.23.185.78-20130704200123/@comment-93.86.89.149-20160627170217

The outlines are not made in the blood of the Sacrifices, just generic blood (no special source); Whedon and the Goddard say this explicitly in a Q&A session I watched somewhere online. It might have even been among the DVD extras, I can't remember anymore. So no draining of blood to get to the outlines, The Facility had outlining-blood already on hand.