When I took B back to the shelter, I took C home to take is place. Then I had to had to take B home again (going from 4 to 5 cats). Once again, he is as nice a cat as you can imagine.
C then reformed after about a month so I took him back to the shelter—and then I got a call from the shelter "TAKE HIM BACK!" He was a monster upon return. I bring hm back home and he it a nice cat again.
We are trying to adopt B and C from my home. However, (1) this is difficult because they are not on the shelf and (2) there are many cats that need home socialization that I cannot take in because I am full.
In the case of the kittens I described, one of them died of an infection when he was about six months old. That was highly unusual as I had only seen very young, newly arrived kitttens and FeLV/FIV cats die at the shelter. His brother was adopted.