[QUOTE=Thomas_1;4402968]
Our elderly golden retriever is in her dotage and does the following:
Site at the corner of the house looking like Mutley on guard and on the look out for the Wiley Coyote and when a car pulls past her on the noisy gravel drive she peers round with a sort of “I heard that… pardon” look! Her eye line normally bears no correlation to the passing car!
When you shout “Teal, come here now” or “Teal, drop that stinking rotten dead bird NOW” or “NO, don’t roll in THAT” she just carries on regardless.
When the other dogs go to the kitchen door if someone arrives, she goes to the cat food!
At the dead of night when all the dogs have been out for last pees and are back in she’ll be tootling round the garden in her own world while I’m trying to attract her attention and get her in. This is most likely to happen when it’s p***ing down with rain and eventually I have to go out and tap her on the backside and say “OI YOU”
Mysteriously though she can hear the word biscuits whispered or the lid coming off the biscuit barrel lid from about 200 yards away.
Seriously the main thing we have to do is make sure she doesn’t get herself too far ahead when walking or she won’t hear you calling. We use a whistle more often for her benefit. We also spend a lot of time jumping about with arms and legs flapping making big silouette shapes so she can see we’re trying to attract our attention! She’s been a gundog all her life and she now doesn’t like loud bangs at all. This isn’t uncommon for old retrievers when their hearing changes. (We’ve had a few) So we keep her out of the way if we’re shooting and in the house with the radio on loud so she doesn’t get distressed.[/QUOTE]
Sounds like our oldest dog - selectively deaf. 
She has learned basic hand signals - well, flapping my arms like a weird standing snow angel :lol: means “come over here, you silly old thing.”
And a poke on the backside means “stop eating fresh horse manure RIGHT now.”
She can still hear hand clapping, which does get her attention (selectively, of course, depending on what else has her attention).
She generally stays close to the other dogs, though, and follows their lead as they trundle around the farm.