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."