The embalming business is basically passed on by word of mouth.
4 seconds sound clip from the The Return of the Living Dead (1985) movie soundboard.
You can hear this line at 00:28:58.928 in the Blu-ray version of the movie.
Quote context
[...]
- You are working late tonight.
- Oh, yeah, yeah. Pretty much. Kind of...
- What time is it? You want a cup of coffee?
- Uh, no. No, thank you. I'm all right.
- What are you doing there, Ernie?
- Breaking out the rigor mortis.
- Huh?
- Come on.
- It loosens up after a while, but you can break it out manually, as they say by flexing the muscles.
- Oh, boy.
- The embalming business is basically passed on by word of mouth.
- I'll tell you, that's fascinating, Ernie, that's really something.
- Well, he's dead now. And I am bushed.
- Hey buddy boy. How long we been friends, Ernie? About how long?
- About 25 years, give or take.
- Yeah.
- If I ask you a favor, could you keep it quiet?
[...]