There was also one where you stumble upon a thing that crashed from space and its this whole totally-not-superman story, and it starts just fine, but the next step involved a NPC literally telling you to buy the DLC to continue.

in two seperate playthroughs, this was the among the first things I encountered in the game.

Which is why I never bought any DA:O DLC, and never bought any of the subsequent titles. because fuck. that. shit