When Pauline Puffington died, she left her entire estate of $3 million to a trust for the care of her 12 dogs and 14 cats. After the pets' deaths, the principal was to be paid to a designated society for the prevention of cruelty to animals. Relatives challenged the will, proving not only that she was eccentric and senile when she made it, but also that she was insane when she died. Can the will be enforced?