Don't turn your back on that guy.
3 seconds sound clip from The Master (1984) - Max (S1E1) sitcom.
You can hear this line at 00:46:07.052 in the Blu-ray version of the episode.
Quote context
[...]
- A ninja does not betray his destiny. You will die.
- You are a ninja. Kill your enemy, as you've always done. Kill him.
- There will be another time. They will be coming for you. Here.
- Don't turn your back on that guy.
- He won't fight again tonight. He's hurt. An artery was severed.
- Who is he? Okasa. Now a ninja master. Was one of my students.
- What ancient little gadget did you use to sever Okasa's artery?
- Holly knows your daughter. She's in Atlanta.
[...]