I can’t believe the Old English Sheep dog did not make the list. Talk about high maintenance, they need daily grooming if you don’t want to shear them every month or so.
A woman used to work for me part time and ownded 2 OESDs. She was the only person I ever knew who arranged her working hours around her Old English Sheep Dogs’ grooming schedule. To her, getting the dogs groomed, washed, dried, brushed was more important than her pay check and cost more too!