I would also say take them but do NOT keep them at your house in case she calls the law and says you stole her cats... If they are not in your house you can invite the law in to search for them..

When I was fixing to make Midnight/Samantha go "poof", I was not going to keep her at my house because I know this was the first place her "Mom" would look.

However also, if they are drug heads, they don't care about anything but their next drug time, she will replace them with more and more and more....