Didn't I warn you not to trust anyone?

[CrazyScientist]

This is kind of random, but does anyone know the origin of this film/literary meme?

Protagonist is talking with a presumed friend/advisor. The presumed friend/advisor warns, "Don't trust anybody."

Later, the trusted friend/advisor reveals themselves to be a traitor, and smugly quips "Didn't I warn you not to trust anybody?".

A recent prominent example is Game of Thrones. Another one that sticks out in my mind is Indiana Jones and the Last Crusade.

I know this happens in many stories, but off the top of my head I can't think of an older example. Google hasn't been much help so far.

What's the oldest example you can think of of this occurring in film or literature? Is it just one of those things that's as old as story-telling?

 

[Leoreth]

There's a site solely dedicated to this sort of stuff. What you're describing sounds like what they file under I Lied.

 

[CrazyScientist]

That's an interesting site. Never been there before. Their entry for "treacherous advisor" also sort of fits the bill. Thanks

 

[Leoreth]

You're welcome. Don't blame me for lost hours though

 

[warpus]

Yeah.. interesting site.. Next thing you know it's 2017 and your dog is dead

 

[ELITEOFWARMAN8]

I think that phrase was from the last Indiana Jones movie. I saw in movie theaters at the time.

 

[Leonel]

Link to video.

Very relevant and my favorite scene in Commando.

 

[History_Buff]

I really wish I could find Rainier Wolfcastle's line about the cake on YouTube, but it seems like they're pretty good at keeping out Simpsons clips.

 

[Verarde]

Oh, not TVTropes!
There goes any chance I had of being productive for the next couple hours.