Answer
MKultra:
Most dogs that are treated normally (spend most of their time with you) just have to be told not to and they stop. Is the dog left alone a lot or do they scratch the furniture when left alone?
Sanafaye:
Clipping her nails and disallowing her to sit on sofas.
Knight:
Knight:
Don't allow it on or near any furniture without constant supervision,
contain it when you can't supervise, immediate correction when caught in
the act.
Karen:
Don't allow the dog on any of your furniture is what I'd do.