If you have to get blood drawn (which I did a couple of days ago) and the nurse comes in a with an "apprentice" nurse who is clearly in training and asks the head nurse if she has a) found an acceptable vein and b) how to connect the needle to the vial, PLEASE do not feel guilty about speaking up and asking the real nurse to take charge.
I know these people have to learn, and they have to learn on real humans (don't they practice on each other??) but if you are too nice, the following will ensue:
Initial unhappiness/discomfort upon contact:
Blinding pain and rage followed by screaming "Ow, ow, ow that really *&^#$(*Q#$ hurts!!!":
Until the head nurse takes over and the black, fainty spots in front of your eyes go away.
Yeah you may feel a little bad that the nurse-in-training has probably been traumatized, but YOU are the one who had a needle jabbed almost clear through your arm, so you get to call the shots. (Get it? Shots?)
She's lucky I didn't have Lilah eat her face.