Bernadette: (sits in Sheldon's spot)
All: Nooooo nooo
Penny: Oh yeah, you can't sit there?
Bernadette: Why not?
Leonard: That's where Sheldon sits..
Bernadette: He can't sit somewhere else?
Penny: Oh no. You see, in the winter that seat is close enough to the radiator so that he's warm yet not so close that he sweats. In the summer it's directly in the path of a cross breeze created by opening the windows there (points) and there (points again). It faces the television at an angle that isn't direct so you can still talk to everybody yet not so wide that the picture looks distorted.
Everybody: (silence and awe)
Sheldon: Hmm, perhaps th