For Adopted Cats-Ever Wonder What Their Life Was Like Before You Adopted Them?

I adopted Sabastian and Kona as adults, meaning they both have a
"past". I know something about Kona's background was because he was
turned into the clinic (which houses cats for adoption as well in
conjunction with a rescue group) as an 11 year old by the family that
had been bringing him there for years. But Sabastian, who was about 3
years old when I adopted him, was a "door dump"-he was left at the
doorstep of the clinic in a carrier, something which I assume happens
at most shelters.

Periodically I wonder what his life was like with whoever had him
initially. I wonder what name they gave him and how he was treated.
Nothing in his condition or behavior really gives a clue. He was
neutered but not declawed. He doesn't seem to be particularly scared
of anything. He's best described as being a lovebug on his own
terms-he likes being held and petted for discrete periods of time, but
after some time (and those periods seem to be getting longer) he
decides that he's had enough and wants to go do other things. He likes
to have places of his own but he also will sleep on his back with his
legs all splayed out in the middle of the floor. He definitely isn't
clingy, although he likes being around me and other people even when
he's had his quota of lovin' for the time being. He's not at all a
"talker", in fact he rarely meows. I sometimes wonder if his sparse
vocalization is a relflection of his upbringing, but it could also
just be the way he is. Whatever life was like for him at his original
home, he seems to have been physically well cared for and there aren't
any signs of mistreatment.

I know that people give away pets for all sorts of reasons and I guess
it'll always be a mystery as to why his original owners didn't want
him anymore. He's a healthy 12 lb long haired black domestic breed
(although when he wants to be held he likes to melt in your arms like
a ragdoll, he doesn't seem to have any of the other characteristics of
that breed) Not an unusual looking cat but very attractive. He's by
far the most athletic cat I've ever been around, but he's not really
bad about jumping on things like the kitchen counter that I would
prefer he not get on. He's real fastidious and always uses the
litterbox. He and Kona have settled down to a roomate kind of
relationship with only occasional spats, so I would tend to doubt that
there was another cat that he couldn't get along with.

At least his original owners had the decency to make reasonably sure
he'd be taken care of even if they didn't have the gumption to bring
him in to the shelter themselves. Did his original owner get married
to someone who was allergic or didn't like cats? Run out of money to
take proper care of him and decide not to tempt fate? Had to move
away and just didn't want to bother taking him? I guess I'll never
know and Sabastian isn't inclined to discuss the matter. In the end I
suppose all that really matters is that we're both very happy he's
here.