I was wearing my (now-deceased) t-shirt with the capsaicin molecule: the primary chemical that makes peppers spicy. The t-shirt doesn't say what the molecule is. It's just the diagram.
We're walking along, and a few kids are riding towards us on the sidewalk. They turned off before they got to us, but as the second kid rode off the curb, he said:
"Hey, look! Capsaicin!"