i'm sorry about your cat tree i def think you should call your T for some support.i know you brought up this trigger about your farther and i bet it is bothering you and i wouldnt feel bad about calling your T at all because it is on your mind.i am a huge cat person and i totally understant the not wanting to tramatise your cat bye bringing it to the vet if thare is nothing they can do.huggs to you and i am sorry