You give me: food shelter medical care waste disposal...

You give me:
food
shelter
medical care
waste disposal
attention

In exchange you get:
Cool animal companion (crucial to be a witch or Disney princess)
Fuzzy baby to pet
Pest control
Alarm clock
Playmate
Silly antics
Popular internet content
Heating pad
Snuggle buddy
Décor enhancer
Mental health advocate
Good judge of character
Best fren