For a while he stood silent.
Then finally he said,
with a very bad shake
of his very old head,
"As you know, on this side of the Wall
we are Yooks.
On the far other side of this Wall
live the Zooks."
Then my grandfather said,
"It's high time that you knew
of the terribly horrible thing that Zooks do.
In every Zook house and in every Zook town
every Zook burns his wood
with the bark side down!"
"But we Yooks, as you know,
we always burn
our wood," Grandpa said,
"with the bark side up.
That's the right, honest way!"
Grandpa gritted his teeth.
"So you can't trust a Zook who burns bark underneath!
Every Zook must be watched!
He has kinks in his soul!
That's why, as a youth, I made watching my goal,
watching Zooks for the Zook-Watching Border Patrol!