There is a quality I call "houseness," part of the larger rubric called "thingness." I can remember drawing houses when I was four and all the other kindergarteners drew their chimneys at a right angle to the roof instead of vertical. I felt quietly superior. I also made a special point of always including garbage cans and shrubbery next to the house, and telephone poles. This additional detail made it hard to include my full signature and I began signing my work Er-H.