I tried twice going to meet the blood bus. Both times they turned me out because they were either booked up or couldnt get their shit working properly. The chunky lady was snippy as well. I was pissed off enough the second time I went to the feed store, bought some 16g needles & went home and did it myself. I got out a half pint before there was some needle slippage and the line clotted up. (moderate success for a first try) From here on I'll be watering my grass with blood every 3 or 4 months.