When I was really little, my family took a trip to the zoo. I'm pretty sure my cousins were there, and my sister, who is two years younger than myself, was still in a stroller.
As we walked around, we saw these guys ahead of us who kept running back and forth in front of one of the exhibits. They seemed like adults to me, but in retrospect they were probably teenagers. When we got closer, right in front of the exhibit where they were, I saw them making funny faces at the animals, which turned out to be chimpanzees. They ran away again, right as the chimps began throwing poop. We didn't know there was about to be ape shit thrown, so my sister's stroller got poop on it.