Two hunters are out in the woods when one of them collapses. He doesn't seem to be breathing and his eyes are glazed. The other guy whips out his phone and calls the emergency services. He gasps: "My friend is dead! What can I do?" The operator says: "Calm down, I can help. First, let's make sure he's dead." There is a silence, then a shot is heard. Back on the phone, the guy says: "OK, now what?"
I think the joke is funnier when you actually try to tell it to someone.

The hunter breaks down and says "Doctor, is there anything I could have done to help save him?", to which the doctor replies
"It would have helped if you hadn't gutted and skinned him."