As a child, I can remember being scared of snakes in films. I would feel compelled to hide behind the sofa when they were menacing anyone. Rattle snakes were particularly troublesome, because they had fangs and a rattle. So, it’s not surprising that the six guns are turned on the snakes in this image. If the cowboy in red does not shoot the snake, he will soon die, because he cannot walk. His disability is due to my ineptitude at drawing his legs, which look like he has been run over by a steam roller. This lack of understanding of three dimensions does not appear so obviously elsewhere, the open bean can and bucket have been drawn with quite competent ovals and the box of cartridges and chest show three sides of their box like forms. So, perhaps by flattening his legs I was trying to rack up the tension.