A graveyard guard was taking a walk outside of the walls.
Suddenly, he hears the sound of something chiseling rock, he thinks its just his imagination and continues walking.
5 minutes later he hears it again, this time closer, but it quickly stops, so he moves on.
5 minutes later, he hears it again, just on the other side of the wall he is next to.
He musters the courage to check it out and quickly vaults over the w