Here are some Funny add-in to Notre Dame de Paris and some Mistake. Though I’m sure there are a lot more of these incidences that occurred in all the many different casts.
During Tentative d’enlÃ¨vement Phoebus sings “Je suis le capitaine chargÃ© de la sÃ©curitÃ©” (“I am the captain in charge of security” ), in the last performance the word “SECURITY” was written on Patrick Fiori chain mail. source
During a performance of La voluptÃ© the bed was covered with condoms. source
During Tentative d’enlÃ¨vement in a performance, Fiori replaced Esmeralda’s knife with a comb . source
During the song Je reviens vers toi Fiori instead of singing “au fond de moi c’est toi que j’aime encore” (From the depths of me, it’s you I still love) he sang “au fond de toi c’est moi que j’aime encore” (From the depths of you it’s me I still love). source
In the London production during The Bird they put in Cages Garou instead of ” do they birds they put in cages” he accidently starts to sing “do the children they put in cages” sourceFollow thehunchblog