I may not be a medical person, but as most humans, I understand pain, care and fear. Find the freaking vein (be patient if the vein doesn't show, we ARE paying for you to do a good, or at least decently painless job), sawb the area (sufficiently), insert the needle (don't need to take your anger out on the poor patient and stab at will), don't wiggle the blasted needle around if the blood ain't flowing ( it results in blasted bruises and horrible muscle aches, damnit!), get the suction thingy in WITHOUT wiggling about (as per earlier comments), pull the needle out and stem the blood flow before pasting the plaster over. Personally, I think a bigger plaster should be used. Imagine walking around with cotton wool sticking out under a plaster. Urgh. Perhaps I'm just more medi-sion conscious. *shrugs shoulders*
At least I'll have accompaniment the next time around. My dad is just too brave to see it my way on this issue. He's the blood donor. I'm the blood receipient. Hahah! (: