It's not often a boggart is unable to find something to use against you. it may zero in on a fear you were unaware you had. An encounter with a boggart is a very educating experience for for one's self, so I suppose I can only say that you'll find out when it happens.
You are welcome to sit in on anything that doesn't clash with your own class and isn't private.
no subject
You are welcome to sit in on anything that doesn't clash with your own class and isn't private.