What is the Saying - Dogs Have Masters and Cats Have Slaves

We have two black and white cats that are the children of two sister cats and they were born within one week of each other so chances are they have the same father. The big male cat loves to eat  and if we do not jump to attention straight away he proceeds to knock things of cabinets with his paws, or his most favourite trick of all he shreds all my papers. I had just printed off the timetable for my first few days at school and he got stuck into those. Of course he loves to sit on my sewing in the sun.