Oops, don't remember if anyone else got this one, but it's one of their most valuable uses -
80. Therapist/personal counselor - with your baby snuggled up next to you or looking at you with those big brown eyes, to them you are the most wonderful person in the world, so you just cannot remain sad or unhappy for very long;
also
81. Lawn aerator - running over the lawn after their toys and frisbees, their sharp claws digging little holes make sure your lawn is properly aerated;