Please, please go read this article.
It's horrible, but Mom thinks it's furry important to be informed.
If you ever have to rehome your pets, don't ever give them away for free. And always do an interview with potential adopters. Get vet AND personal references. Be really thorough and if you have the slightest bad feeling, DON'T do it.
The instances of animal cruelty are increasing and people need to know that it won't be tolerated. Write a letter. Pass the word around. It matters. It makes a difference.