Conan O’Brien continues his feud with Comedy Central personalities Jon Stewart and Stephen Colbert in this sketch featured on Friday’s installment of Late Night with Conan O’Brien. The comic is warning the pair to watch their mouths-after all, he did “bring them into this world.”

According to the Late Night Insider: Hey Colbert & Stewart: Keep talking junk, and Conan is going to come over to your studio and shut you up… PERMANENTLY. In other words, you boys better check yourself before you WRECK yourself!!