Lost Sheep

So these two cowboys are riding the fence line in Montana looking for downed wire. They come upon a ewe caught in bad wire. The old hand gets down, unbuckles his belt, etc, does the dirty deed with the ewe. Looking up at the new guy with him, he says, "Say, would you wanna try this?" "I might," he says, "but do I hafta put my head in the barbed wire?"