The Stoned Guest is a "half-act opera" by Peter Schickele in the satirical persona of P. D. Q.
Some character names, such as "Don Octave" and "Donna Ribalda", play on the Mozart opera, referring to Don Ottavio and Donna Elvira respectively, while the castanet-clicking "Carmen Ghia" plays on the title character of Bizet's opera (and puns on the Volkswagen Karmann Ghia).
The "Commendatoreador" plays on both operas at once, being a combination of "Il Commendatore" and the toreador Escamillo.
The orchestral accompaniment for Donna Ribalda's opening aria, "Let's face it—I'm lost", resembles the "Rex tremendae majestatis" from Mozart's Requiem.
The final scenes of the opera parody first the stereotype (exemplified by Don Giovanni itself) of classical opera as having a tragic ending and then the stereotype of the Romantic narrative (as reflected in, e.g., Goethe's revision of the Faust legend) by revealing the tragic ending to have been a false ending and introducing deus ex machina to generate a happy conclusion not warranted by the earlier plot.