Good luck removing that duct tape
Man, when they wrapped the duct tape around his gnarled up arm, all I could think about was how amazingly painful getting it off was going to be... seems like it wouldn't even be possible to remove without damaging the wounds a whole hell of a lot.
I know it was a "in the heat of the moment" decision, but maybe the dude could have looked for some sort of non-sticky material to wrap the arm with and then wrap the duct tape around that.