My dad feeds the local stray cats out on some nearby common land, they all know him. One of them came to his front door last year and started meowing rather insistently. Dad opened the door and this cat went a short distance away and summoned this small single kitten, pretty much ushering it into the house - unheard of for this cat. So that's how my Dad now has 1 and a half pet cats.Used to take mine on a walk at least twice a day. Nothing special in that except she was a cat.
The kitten stayed full time, Dad takes him on a walk every morning on a lead(!) and they go on holiday together in a campervan. The mother comes and goes as she pleases and now and then the grandmother will turn up for a visit.