It's Me or the Dog S01 E05 Lilly

Lily the barking Bichon has a big attitude and a fierce hatred of the mailman. Victoria comes to the aid of a couple who are on the verge of breaking up because of their attention-seeking bichon frise, which uses the whole house as a toilet and gives its owners endless sleepless nights. She realises the problem stems from the husband and wife’s different attitudes toward the pesky pooch.