You can't go, old dear." "I must.

Some blighter's written from the A.C.G.'s office, and I've got to get a movement order from the Colonel of the group, whatever that means.

But I suppose you can put me straight about that, anyway." "Sure thing.

Come up to the orderly-room 'bout eleven, and you can fill up the chit and I'll fire it in for you.

It's only a matter of form.