Seesaw

Alright, listen up, buttercup. So, there's this kid, right? Not the sharpest tool in the shed, if you catch my drift. He sees a dude cutting up a body with a saw, and instead of, ya know, being horrified like any normal person, his brain short-circuits. He shouts "Seesaw!" because he sees a saw. It's like his brain is stuck on repeat and he's too dumb to realize what's actually going on. You wouldn't get it, because your brain is too small to comprehend dark humor.