The chemical formula for capsaicin. Audience members get to choose between water, crackers, milk, or ice cream. In this, the results vary. Even when they pick water first, they say it doesn't work. It's a toss up among the other items.
People sometimes pick the crackers or the milk.
I remember one woman was jumping around because none of the first three worked at all, until we brought her ice cream. She ate the ice cream and said the feeling went away so quickly. That's how that item got added to the experiment. The most popular is the ice cream - it has the sugars and fats. Its coldness also calms the heat sensation.