Read Before You Sign

Sign in front yard of a house not too far away: "House For Sale With Owner." This raises some interesting questions. First, could you buy the house à la carte, without the owner, and would be be cheaper that way? Second, if you bought the house with the owner, would the owner do windows and other household chores or just be a freeloader? Third, are they covering prepositions in sufficient depth in the local public schools? And fourth, as always, do I have way too much time on my hands?