I find nothing undignified about it, once you get over "poop is the epitome of indignity" and such (imo) nonsense.
Have you heard a baby being born? A baby is all like "AAAAA! AAAAA! AAAAAAA!", except less textual and more piercing in pitch. Show me a definition of "dignified" which encompasses such shrieking, and I'll show you a definition of "dignified" which lacks mainstream recognition.
Rules: