The old shepherd had died, or got drunk, or got rats, or got the sack, or a legacy, or got sane, or chucked it, or got lost, or found, or a wife, or had cut his throat, or hanged himself, or got into Parliament or the peerage anyway, anything had happened to him that can happen to an old shepherd or any other man in the bush, and he wasn't there.
His rage passes description - the sort of rage that is only seen when rich folk that have more than they can enjoy suddenly lose something that they have long had but have never before used or wanted.