 What is the most dangerous aspect of the neutroids and other mutant animals?
The felines were emotionally safer than the quasi-human chimp-K series called "neutroids." When a pet neutroid died, a family was broken with grief; but most couples could endure the death of a cat-Q or a dog-F. Class-C couples were allowed two lesser units or one neutroid. This could be a ruse to bring a stop to investigations when one animal is found. Its replacement-quota of new neutroids was around three hundred animals a month. Once a neutroid reached its age-set, it remained at the set's child-development level until death.
 Their cute appearance makes it easy for humans to get attached to them, and mass levels of attachment could potentially thwart current methods of classifying members of society.
 Because they are grouped together in isolated areas, it is possible that they could use their adorable appearance and innocent demeanor to hide the fact that they are conspiring to overthrow the society.  Because they only live up until a certain age, they often act with a level of invincibility that is threatening to society and its systems of social stratification.  Their cute appearance causes others to underestimate their high predatory instincts and behaviors, and many injuries and deaths result because of this incongruency.  Their cute appearance makes it easy for humans to get attached to them, and mass levels of attachment could potentially thwart current methods of classifying members of society.