All the same, you oughtn't to sleep on duty--it's dangerous." "Tell me something I don't know," said the man, "but I can't help it.
I know'd well enough just how it 'ud be.

But I couldn't get off.

They couldn't get no one to take on my duty.

I tell you I ain't had ten minutes' sleep this last five days.

My little chap's ill--pewmonia, the Doctor says--and there's no one but me and 'is little sister to do for him.