Awww!!, both ours are rescue dogs (SSPCA Cat and Dog homes at Milton Dumbarton and Cardonald, Glasgow), so no cute (pee and poo on the carpet) puppy stage for us!!
Nope, we get ours ready house trained and glad just to be loved (again).
The youngest we got was/is Cindy, the black brindle, 3 legged, Staffordshire Bull Terrier with a bent/kinked tail (obviously caused at the same time as her leg), at the tender age of 11 months old, from Cardonald.
Poor thing, she had lost her back left leg in a car accident, and then been abandoned within her first 11 months of life. No wonder she looked all confused at first. Bless her little woolly jumper.
The 3 legs do not stop her, and she's just delightfully dotty (as most Staffies are).
Now 3, she is quite small for her age and people do occasionally think she's a puppy still.
She lives now with my Sister.
Our other dog, Bruno, was apparently found stray in Greenock (Scotland), is a tan brown Staffie/Alsatian/Labrador/everythingelse cross, and they think he was 2 or 3 when we got him (October 2001). He's now about 10, and, as booked, is rather smelly these days, but we love him nonetheless!!

He had been at Milton for 3 months, nobody wanted him

Rather quiet and placid is his nature, which may explain that!
When we got him, it wasn't until the first night of him being home with us that we heard him bark and make any real kind of sound, and that was when someone came to the door.
Quiet and placid he is, that is, unless he sees certain other dogs, cats, and, oddly enough, motorbikes. He HATES motorbikes with a passion!!
Now a Therapet, this Heinz 57, rain hating, former stray goes and says hello to all the people at the local old folks home regularly, and gets fed biscuits for his efforts, not that he complains of course!! (it's no use telling the pensioners that he's meant to be on a diet, etc, they feed him far too much regardless).
Anyway, enough about the woofs.