Bummer. Evelyn had been hoping she wouldn't be called in to give a Defense Against the Dark Arts lecture that term due to the overwork the Auror division had been enduring as of late, but there she was, ready to teach a class on the Patronus Charm. As usual, she arrived early to prepare the classroom; given the usual scope of the spell, she had pushed the desks as much against the walls as she could to create a bit of a corridor in the middle of the room as space to practice.
She wrote her name on the board, highlighting she was merely a substitute teacher, as well as the name of the spell they would be learning that day in big, bold letter: the Patronus Charm. It was a spell she wasn't terribly fond of. Not because she couldn't perform it or because it had some semblance of difficulty to her, but because hers was of the fowl variety.
She hated birds.
Students soon started arriving, taking their strangely placed seats. The blonde leaned back lightly onto her desk and smiled pleasantly in greeting. "Good morning, everyone. My name is Evelyn McCarthy-Parsons and I shall be your guest lecturer for today's Defense Against the Dark Arts class. Unfortunately I can't remain in the position after this, but I'm sure it will be a very productive class."
She took her cypress wand out of its holster, not yet producing magic with it. Instead, she held it vertically and let her chin rest upon the tip. "Now, ladies and gentlemen. Before we begin, I request of those who actually know what a Patronus Charm is..." She motioned towards the board, indicating the theme of the class. "...To mention what you know about it, what it does, its various uses, the intricacies to produce it, so on and so forth. Don't worry if you don't wish to respond, I won't take away points from you for not participating."