Yes I think your probably right Tony,her old man may be a right task master,who knows,one thing I did learn from her,is how to get the dents from furniture out of carpets completely,steam iron and damp towel,said go over it a few times then leave towel on,she said it took her over a week,going around the entire house removing them,she did a great job as you couldn't see any marks,so may be a case of ocd or just very very house proud.
She said she was in her last place for over 30 years and said the carpets were as good as new when they left,personally couldn't live in a sterile environment like that,but each to their own hey