Mark, the only truly acceptable form of house construction is barn-raising of the sort we saw in “Witness” and — as danced by members of the New York City Ballet — “Seven Brides for Seven Brothers.” In these cases, high spirits alone caused pieces of wood to fuse miraculously due to the communal love shown by all. And of course the only really acceptable Habitat for Humanity house is one on which Jimmy Carter has laid his sainted hands. I believe Our Greatest Ex-President’s only true regret is that he couldn’t make sure one of his houses went to one of the “slim and lovely” wives (as he called them repeatedly) of the dictators he always loves to suck up to.