We were having trouble with the cats scratching the furniture and although they had a scratching post in the other room I decided to put one in the room with the furniture. It has worked great for Neko, I knew he loves these type of posts anyway (the ones with the surrogated cardboard) but Willie has shown no interest in it. I have sprinkled cat nip (which he likes and sniffs and then goes crazy, but it will not make him scratch it) on it and showed him and moved his paws for him but nothing will make him scratch. When Neko scratches it he decides he needs to scratch and does so on the couch arm, I pick him up and put him on the post and try to make him scratch but it does not work. What should I do to get him to scratch it?