Whenever Percy stopped by to see [Annabeth], she was....

“ Whenever Percy stopped by to see [Annabeth], she was so lost in thought that the conversation went something like this:Percy: 'Hey, how's it going?'Annabeth: 'Uh, no thanks.'Percy: 'Okay...have you eaten anything today?'Annabeth: 'I think Leo is on duty. Ask him.'Percy: 'So, my hair is on fire.'Annabeth: 'Okay, in a while. ”

Rick Riordan

From : The Mark of Athena