Exactly. Hold on to the feather end of the arrow and poke the snake in the head with the other end...dead snake. But you do the pok'in, I'll watch from a distance.
But for real, I have a friend that stepped out of his pickup at a farm gate one night to open the gate and he stepped right on top of a rattler. He kept his boot on top of the snake (just behind the head) and used a bic ink pen from his pocket to kill the snake by pushing the pen through the head of the snake. He couldn't reach anything else to kill it with and did not want to take his foot off the snake. I saw the snake a couple of hours later with the ink pen still stuck through it's head. It was a mid sized snake about three feet long.
Strive to live up to the opinion that your dog has of you.