Stiff and Six Inches

Alright, listen up, buttercup. So, you got this question: "What's stiff and 6 inches long?" The answer is SIDS, which stands for Sudden Infant Death Syndrome. It's dark because, well, infants dying ain't exactly a barrel of laughs. You probably think 6 inches is not related to an infant, but your brain is too smooth to understand the punchline. Now go back to your cartoons.