The dinner party includes all of Hank's colleagues from the English department, including Emma (Shannon DeVido), who is in a motorized wheelchair and it seems evident she cannot get out of it. However, their house is surrounded by stairs, highlighted by the difficulty they have carrying the titular grandfather clock into the house. If there were any entry without stairs they would have logically used it for the clock. How did Emma enter the house? (Her motorized wheelchair is more impossible to carry than the clock is)