Trying to work it out
The woman who wrote in a while ago to say that she was upset because her mother in law was feeding cats, and may have caused her son to have fits, just wrote in again. The strange thing is that she's not trying to stop her mother-in-law, but rather she is trying to get CWS, the town council, AVA and every official body to stop people from delivering food to her home.
She said she has no problem with the food per se, but if the food stops, her mother-in-law will not be able to feed. She is upset her mother-in-law will come home in clothes which are contaminated.
This is assuming that (1) her mother in law will not just find some other food source. She could for example cook for the cats or (2) her mother-in-law stops feeding and decides instead to just play with the cats.
The woman also made an analogy to bowls of water lying out in the open (which might cause dengue) to the Australian man recently hung for drug smuggling. The point she was trying to make I think, was that both could hurt your family, so you should crack down on both. Hanging for people leaving water bowls out then?
It baffles me why people don't just speak with their family members and try and work things out. If that really doesn't work, then perhaps trying to move out or minimise contact with the other person might be the way to go. After all, they are your relations whom whether you like it or not, you are going to see for the rest of your life. To blow what is essentially a family disagreement up to the authorities is kind of a sad state of affairs.