A tutor.
Me: Depends on how many calories are in the person you are setting on fire.
Nothing, you already told 'em twice.
Because once you go to sleep, you can't trust either of them to not sneak out.
They can't shut up long enough to build up pressure.
You should know more than your dog.
Me: Two. 4-year-old: It was nine. Teaching her to count was a mistake.
A tutor :)