Sure, sometimes the plans go off-course. But he gives us all the relevant information and maybe we can use it if the first plan goes tits up.

I'll admit I didn't listen to him as much as I should have at the beginning when I was younger. But... you know, 'teenagers' think they know everything. [That's a gross under-representation of how badly she'd fucked over Giles. And Wesley too. But she's not ready to go into detail of her massive screw ups. She wants people to like her, after all.]