Her: You don't need to eat food to live.

[Scene: It's around half an hour after sunrise. Early morning, everybody has to be somewhere by 7 am. It's the kitchen, her mom just got up and I'm making breakfast.]

Her: You don't need to eat food to live.

Me: why [nickname] ? Where do you get that idea?

Her: You can just eat grass, and live like cows do.

Me: Grass is food too. And don't eat that, there might be tiny bugs in there.