L’occasione fa il ladro, ossia Il cambio della valigia (English: Opportunity Makes a Thief, or The Exchanged Suitcase) is an opera (burletta per musica or farsa) in one act by Gioachino Rossini to an Italian libretto by Luigi Prividali, based on Le prétendu par hasard, ou L’occasion fait le larron, an 1810 vaudeville by Eugène Scribe.

[5] In April 1991 it was presented at the Politeama Garibaldi in Palermo, conducted by Antonello Allemandi with the orchestra and chorus of the Teatro Massimo.

The opera was entitled Love’s Luggage Lost, and the production was directed by Christopher Alden and conducted by David Parry.

The opera was presented in September 2017 at La Fenice, directed by Elisabetta Brusa, in collaboration with the Venetian Accademia di Belle Arti.

At Don Eusebio's house, Ernestina, who has fallen on hard times, agrees to extend her stay and take on the role of Berenice's companion.

A mutual attraction also springs up between these two, but Berenice is disconcerted to learn that Alberto has apparently already arrived and can prove who he is, whereas this man has no papers to identify him.