Episode 3: Ringo's Snowcap Mushroom Soup

Apologies if I missed something obvious or if this is a frequent question. I am watching for the first time and am confused how Ringo knew to make the soup for Shindo's giant henchmanwith the mushrooms that would make him sick. Was he expecting things would go bad and he'd need a way to escape, or did he want to make him sick for another reason?