[She just smiles at the first part. She had expected he might figure it out but needing a little push wasn't anything to be ashamed of. There had been plenty of times in her education that her mother had said something so simple that she realised how wrong she was doing her magic.]

It'll just go away, so don't worry about lighting anything on fire this way. [She brightens.] One time on my flying carpet my concentration broke and the wind magic disappeared just like that! My poor carpet was struck in a tree.

[Also they all fell out of the sky but you know. The important part.]