YMMV / The Simpsons S 27 E 15 Lisa The Veterinarian

• Aluminum Christmas Trees: Bart's wiener-fish prank might seem like a joke in his standards, but "those tiny fish that swim up your wiener" actually exist in real life. Candiru fish (Vandellia cirrhosa) are a group of parasitic catfish that are common in South America (especially the Amazon Basin), and are known for swimming into the urethra. Although, cases of this are relatively low.