Harry Potter and Gilderoy Lockhart's private lesson

This private lesson took place in Harry Potter's second year on obviously 13 February, 1996 between him and Gilderoy Lockhart the Defence Against the Dark Arts of Hogwarts School of Witchcraft and Wizardry at the time.

Lockhart taught Harry how to use Verdimillious Duo and then set Harry a little challenge involving trying to get past love guards.