"I like to keep a bottle of stimulant handy in case I see a snake, which I also keep handy"

This quote by W. C. Fields is an amusing way of expressing his readiness for any scenario. He is suggesting that he is constantly prepared for any possible risk, such as a snake, by keeping a bottle of stimulant and a snake convenient. The stimulant could be analyzed as a metaphor for courage, suggesting that he is constantly ready to deal with any difficulty that comes his method. The snake might be analyzed as a metaphor for any kind of risk or barrier. By keeping both of these products helpful, he is indicating that he is constantly prepared to take on any challenge that comes his method. This quote is a humorous way of revealing his readiness and courage in the face of any possible danger.