Rebecca, another volunteer and I went by to speak to the family in this case. The cat looked pretty sick, had not groomed herself as Rebecca pointed out to the woman and had no appetite according to the woman. She also said the cat had miscarried and had been bleeding though that seems to have stopped somewhat. The front right paw also seemed to be injured.
We offered to bring the cat down but she said she did have transport. She asked for the name of the vet and said she would go with her husband tonight. They had never been to a vet before and she said she would get it sterilised since she was there. We told her to call if she had any problems.
Heading out to a meeting now, so more on this cat, the cat with the collar and the cats in the toilet when I'm back.