Supernatural, Season 3

Sam:
I talked to Mr. Beetle's doctor. Turns out his incisions were sewn up with silk.

Dean:
That's weird?

Sam:
Yeah, nowadays it is, but silk used to be the suture of choice back in the early 19th-century. It was really problematic. Patients would get massive infections, the death rate was insane.

Dean:
Good times.

Sam:
Right. So, doctors, they had to do whatever they could to keep the infections from spreading. One way was maggots.

Dean:
Dude, I'm eating.

Sam:
It actually kind of worked because maggots, they eat the bad tissue and they leave good tissue. And get this: When they found our guy, his body cavity was stuffed full of maggots.

Dean:
Dude, I'm eating!