The phrase is associated with El Especial del Humor, the Peruvian television comedy show built around broad characters and family-style sketches, and with the comic world of Gordo Casaretto and Carlota, linked to Carlos Vilchez. Short clips from the show circulate online because the catchphrases are easy to recognise even without seeing the full sketch. Cuidado sobrino has kept that life as a shareable reaction sound, passed between fans of Peruvian humour and reused whenever a video needs a familiar, teasing warning before something goes wrong.