"Father Knows Worst" is the eighteenth episode of the twentieth season of the American animated television series The Simpsons.
In a dream sequence, Homer receives advice from the ghosts of historical figures supposedly buried in Westminster Abbey.
He tries to douse it out with water, but gets tricked by Bart into drinking lighter fluid (prompting Homer to strangle and breathe fire at him).
Following a brief stint in a tongue cast, Homer's taste buds become hypersensitive, making eating ordinary food an ordeal.
While shopping for balsa wood, Homer reveals that Bart will build the Washington Monument, but Principal Skinner criticizes this as overly easy.
Marge visits the sauna on a regular basis and is so deeply relaxed that she does not react when Homer tells her of Bart and Lisa's problems.
After Homer comes home believing he has failed as a parent, Marge leads him downstairs to the sauna where they revel in steam and relaxation.