The Fountain of Youth

We're gazing down on a peaceful baby as he lies in his bassinet.

W: He's such a precious little thing. It's a shame that he has to grow up.
Me: Yeah, but that won't happen just yet.
W: I suppose, he is only 10 days old.
Me: And quite the little trooper.
W: (smiles) Did you have another changing incident?
Me: Uh-Huh.
W: Much?
Me: He only got my T-shirt this time.
W: Better than his own vest.
Me: I suppose you could say that his direction is improving...
W: It's a reaction to the cold air when you open the nappy.
Me: I know that, but the thing that gets me is that it doesn't happen straight away. It's almost like he waits a full minute later, when I'm in the middle of doing something else, like placing the new nappy underneath or reaching for a cotton ball...
W: ...and then he lets it go?
Me: Yeah. 

I pick J up and he starts to wake. 

W: Mummy's little rascal.
Me: He looks so calm.
W: To be honest, it looks like he's working something through.
Me: Such peacefulness means internal forces are at play.
W: Or it could just be a Pavlovian response to Daddy.
Me: Don't say that!
W: (laughs) I'm joking! He does it to me too.
Me: Glad to hear it.