!!Fridge Horror
* Leporello recites a catalog of the Don's "seductions," totaling 2065. We see from the beginning that Don Giovanni is willing to actually forcibly rape women in his "seductions." Even if the vast majority of the 2065 were mostly consensual (albeit with lots of deception and lies), how many outright rapes has he committed? 50? 100? It puts the colloquial use of "Don Juan" as a sexy suave guy in a whole new light.
** It didn't help that at the time 'being in a position where nobody could help' was often treated as 'consent' and there was precious little concept of consent given under duress. Just looking at the YMMV page for critical treatment of Anna over the centuries should give you some idea of the sort of attitudes such victims would face.

!!Fridge Logic
* The heroes know Leporello as Don Giovanni's devoted manservant, aiding his master in all manner of trickery and deception. They've finally tracked down Don Giovanni, and burst in. No Don, but Leporello is there. They ask him where Don Giovanni is. Leporello replies (approximately) "uh.... the Commendatore's ghost appeared and dragged him straight to hell. Yeah, that's the ticket!" The heroes' response? Believe everything Leporello just told them, say "justice had been done!" and break out the champagne to celebrate. That Leporello's crazy story happens to be true doesn't make this any less implausible.
** Elvira met the Commendatore outside as she was leaving. In the moments leading up to the Commendatore's entrance, she screams and runs back through the room to escape through another door, and in the finale, she responds to Leporello's story by saying "It was surely the ghost I encountered!" So Leporello's story isn't that implausible in context, although it is true that after earlier events in Act II the other principals have every reason to distrust anything he says.

!!Fridge Brilliance
* Some viewers and critics have found it unrealistic that the tomb statue of the Commendatore is finished within a day after his death. However, it's certainly plausible that a rich and powerful man would commission his funeral monument while in good health and have it finished well in advance of his death.
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