Is it sharp enough to cut off my pinkie? she asked
Yes, I replied
What about my thumb? she continued
Yes, they are sharp enough to cut off your arm, I said pointing at her wrist
She then pointed at her throat - If I sawed hard enough, would it be able to chop my head off?
Yes, of course, I told her, trying to sound very serious, so she would never play with my knives.
But her reply broke my seriousness in one fell swoop: That would be a pain! With my head off, I wouldn't be able to see where I was going!