This triggered a memory of my father for me, the man was always asking if I noticed this or that , the answer was almost unequivocally no nearly every time. For one I don't tend to notice things unless they are virtually impossible to ignore, and second off many of these things were in rooms that I never had any reason to visit. Have you seen what I've done in the Attic he would say, no you moron i had to bite my tongue to avoid saying.