after stabbing his wife, Nedda, and her lover, Silvio.  
In the prologue to this work, the fool says to the audience, "May I?  May I?  Lord!  Gentlemen, a nest of memories".  One character in this work sings the arias "Qual fiamma avea nel guardo" and "Stridono lassu" to frighten and then comfort another character, who would later call out "I will always be yours!" to her lover, despite the fact that she is married to the character who sings the aria "Vesti la glubba".  At the end of this work, the title character exclaims, "The play is over!" after stabbing his wife, Nedda, and her lover, Silvio.  For 10 points—name this work in which Canio is the head of an acting troupe and plays a clown, an opera by Ruggero Leoncavallo.
In the prologue to this work, the fool says to the audience, "May I?  
{Pagliacci}