Q, such statements on someone's way to a meeting should not be published. Cinderella was known to wear glass slippers long before Balzac lived. A minute of googling makes me assume that Balsac was the one to suggest the vair interpretation, which however has been challenged by many more recent scholars.

A truly ingenious quasi-mondegreen is Othello's background as a slave from Africa with all its psychological implications - the Italian original simply featured a man named Moro.