Mrs. Grey,

You have most certainly not stepped outside of any sort of etiquette or
propriety with your posting- in fact, it is uncommon decent of you to
let us know because each of us here understand the importance of guiding
a young person in a skill which catches their interest.

Please accept our condolences and know that both you and the young man
he was teaching are welcome here any time. I know it's not worth much
today, but know that Peter has performed an act of great goodness and
your post indicates that he gained that which is worth most in the
world: the respect of a woman and a boy.

John