it gets worse
I took this myself, hands behind the back. these are where the injections are, and they go all the way to the bone before being released. it sucks.
so far i've had: dextrose, polyethylene glycol, glycerine, procaine, marcaine, lidocaine, sodium murruate, pumice (suspended in glycerine), testosterone and human growth hormone injected in my back, hip and a few times in my groin.
the doctor drew this and took a photo. i asked for a copy, but he said no, and left the room to get the needles. when he came back in, he caught me taking this. i think he actually said something like, "nice shot." Very funny.