Quotes: I Warned You

"I warned you! I warned you, but did you listen to me? Oh no, you knew it all, didn't you? Oh, it's just a harmless little bunny, isn't it? Well, it's always the same. I always told them, but do they listen to me? Oooh, no..."
Tim the Enchanter, Monty Python and the Holy Grail

The Student Council President is a girl. Everyone in the school knows that. You were probably dozing off so you didn't even notice.
(...)
That's why I told you to stop chasing after the Student Council President...
Erika Kurumi to Tsubomi Hanasaki after the latter got a massive Unsettling Gender-Reveal on said Student Council President, HeartCatch Pretty Cure! episode 7.

I told you! What did I tell you? Didn't I tell you? 'Cause I told you! Mm-hmm! And when did I tell you? A long time ago! And what did I say would happen when I told you? Exactly what just happened!
Black Woman in Hindsight, Family Guy

Phil: I hate to say this, but...
Phil and Lil: We told you so.
Rugrats, "The Odd Couple"

"What are you so afraid of, Cell? Isn't this what you wanted? I warned you. I told you what would happen if you pushed me too far. But you didn't listen. You forced me to awaken my hidden power, and now that you've seen it, you're afraid... because you know that I'm going to destroy you."
Gohan, Dragon Ball Z

Take that and that and that and that! HA! I warned you, didn't I? Didn't I warn you? I thought I warned you. I didn't? Oh, sorry.