The Dog and Pony Show - S3.E8

Mr. Wick is roped into dog-sitting Mrs. Louder's prized show dog; it's very valuable because of its unique coat and breeding capabilities. Wick ditches the responsibility by leaving the dog with Drew without consulting him. Kate drops the dog off at Drew's and doesn't have time to leave a note. When Drew gets home, he assumes the dog is a stray and takes it to the vet. Kate returns later and is horrified to find the dog shaved and neutered.