Jubal decided that Patty was a little dotty but quite nice... on the whole, he preferred people who were a little dotty; "the salt of the earth" citizen left him cold.  Not too dotty, he amended; Patty had let him undress himself, then had whisked his clothes into his wardrobe without coming near them.  She was probably a clear proof that one didn't have to be sane, whatever that was, to benefit by this remarkable Martian discipline that the boy apparently could teach to anyone.