I would KILL to have my dog living here on campus with me!! One of my roommates occasionally breaks the rules and brings over her golden puppy that she has with her BF...he's the cutest thing EVER, so I'll take whatever punishment they dole out for 5 minutes of puppy therapy.
One of our fraternities has 2 dogs living in their house (both are super cute and well behaved), but their house is owned by their alumn, so the pet rules are theirs alone. We rent ours from OC, so no pets...although there have been a few 4 legged ...uh....hostellers? in the past year. A cat, named Tomo lived at the house for 2 weeks when it was found abandoned by a sister (she was moving out to a pet-positive apartment). Tomo now has a brother, Dachi, (tomo dachi...tau delta....) a perfect Siamese cat! A living mascot!