Many years ago I stayed in a house where the owner had 2 rescue greyhounds, one an ex-poacher's dog, the other an ex-racing dog, both females.
The ex-poacher's dog was very friendly, confident, trusting, and energetic, but equally happy to follow you round the house, garden or just lie curled up in a corner and watch you go about your business. Any sign of me putting my running shoes on (she knew the difference), and she'd start running in circles round the very small room, getting really excited. I had to take the lead, as it was out in the country, full of rabbits, hares & pheasants. If she was off the lead and spotted something, you had a split-second to see her ears prick up and tell her to stay, otherwise she would mysteriously go deaf and try to do her previous "job"! A great dog, she used to go on long walks into the emptiest parts of the Highlands, never really tiring.
The ex-racing dog was very different, really timid and would flinch at a loud noise or raised voice, tail between the legs and sometimes start shivering with fear, clearly she hadn't had a very happy previous life. It took a long time for her to get used to the idea that she didn't have to be afraid of humans, and it was lovely to watch the other dog, much smaller than her, take her under her wings, take the lead at any mischief (like fetching a freshly baked cake off the kitchen table and make all traces of it disappear, down to the last crumb!), and look after her. The ex-racer was much faster, but, in typical sprinter's style, tired out much faster. It was hilarious when she started gaining confidence and imitated the other dog in the small-circles-round-the-kitchen-excitement when taken out for runs, and then seemed embarrased, like she was not really sure she was doing it right. Also a lovely dog, but needing lots of TLC to recover from past mistreatment.
Also very funny when a new kitten arrived in the household, at first it was kept in a large caged run, to get the dogs used to it. Once we were certain they had understood the wee cat wasn't a new toy for them, we introduced them to each other. The dogs understood and were very patient (rolling eyes and looking at you as if to say, do we really have to put up with this?, and the odd surprised yelp), even though the cat practiced its ambushing skills on them, jumping off armchairs and hiding round corners and grabbing their legs & tails - with no retaliation whatsoever. They all curled up regularly, and all seemed to be equals.
Oops, getting a bit nostalgic here ... in summary, both very intelligent and sensitive, able to read moods and keen to please, very easy to keep in small spaces, as long as they get a daily run, probably not really needing long walks. A bit cat-like in some ways, rather than clumsy like Labs etc. Personally, I wouldn't hesitate to get a rescue greyhound, if I could provide them the right home...
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