Can I report my roommate's dog for damaging the patio?
What exactly did the dog do?
He poops on the floor all the time.
Well, it sounds like your roommate doesn't have much control of their pet. Owners should be able to control their pet's behavior. She should get her dog to stop pooping on the patio.
I'm going to make my roommate pay for it. All she needs to do is clean it.
Well, talk to her about being more responsible about her pet and say that she has to clean up after her dog from now on. It seems like a strong compromise.