The Big Fella is enjoying being top dog. For 2 days each week, he sets the pace.
It's just me and him. He gets to decide which park to visit, which library books we borrow, and what games we play. He even gets first bid on what we're eating for dinner.
Of course it all ends at 3pm when school finishes and we collect The Complicated One. Then it's back to normal. Or abnormal.
And now The Big Fella has tasted the high life as top dog, things can get a bit testy at the pound when the old dog returns.
There is much pawing at the ground and gnashing of teeth as he asserts his few-found authority. They disagree over anything and everything - who gets to play with what toy, whose toy is it anyhow, how to play a game, whose game is it anyway, what we're having for dinner, and whether the sky is blue or green.
Being two months shy of his 4th birthday and in the 'big' room at child care, The Big Fella thinks he's king of the world.
Until The Complicated One reminds him that's he's nearly six and is going to school. At which point The Big Fella declares, "Well, I'm going to school next year!"
Which may or may not be the case, depending on how soon The Big Fella can count past 14 and write more than the first two letters of his name. Even if he can't, he has the personality to bluff his way through kindergarten even now.
Chances are he'll find the whole experience less traumatic than his big brother, who after 6 weeks of Kindergarten is wracked with existential angst when he can't read a sentence that would trouble most Year 2 kids.
The Big Fella already dresses each morning like he's off to a Year 12 school formal. He takes great care to match one of Spiderman t-shirts with the right pair of shorts, choose socks that are cool ("are these socks cool?" he asks most mornings), and adjust the tilt of his cap (the bucket had was long ago ditched as uncool).
The Complicated One couldn't care less what he wears. He has too much on his mind as it is, what with re-sorting his Moshi Monsters collection and deciding on the pros and cons of different approaches to securing world peace.
A mum whispered to me during school assembly this morning that her son told her that everyone in his class wants to be like The Complicated One. No, not complicated - but attentive in class, considerate and respectful of others, and generally helpful and well-behaved.
My heart filled to bursting.
As for The Big Fella, he's busy mixing poison in the cubby house. "Don't come in, I'm mixing poison" he yelled at me yesterday afternoon.
Let's just hope he's not planning to poison the top dog.