Once, everyone thought that Nico had suffered amnesia and so they tried to tell him everything he needed to know.

Hazel: I'm your sister, you hear me?

Frank: We are the Mythomagicators.

Percy: Blue food always tastes better.

Annabeth: Never listen to Percy.

Leo: YOU LIKE CHOCOLATE

Piper: You should always let me help you buy your clothes.

Jason: I don't think you should... I mean... You don't need to remember... hahaha... no. Hahaha you're good to go buddy.

And Nico was just like

wth is wrong with you people I don't have amnesia I remember everything.

Oops.