How is Mark actually listening to his wife when he's counting seconds until he gets the Klondike bar?

Rivers of Thyme

Jaded shut and rusted through
If I'd only paid attention to
The restrictions of this clay and dust
A metal man can only rust
But clay men turn to mud
Then back to dust and ash.
Standing under every overpass
Just watch, watch, watchin' the sky
And wond'ring when I'll transcend
Or if all alone in the end
I'll still believe I can fly.
I'm thinkin' I might like to die
It has to be easier to hide
Than to walk and maintain this disguise
Or keep hoping I might be surprised
As I stand and ponder the cosmos
Seeing white mountains pass by
And dissipate into the sea.