"My best friend's name is Jake," says Anna. "Well, one of them. Dad says I shouldn't say 'my best friend' because it will make my other friends feel bad, and that's mean." She lowers her voice, and then adds in a confiding whisper, "But Jake is my best friend, even though he's a boy."

She is trusting you, Felix, not to tell her other friends, should you ever meet them.

"What's Jake the dog like? And who does he belong to?"