Good gravy you must be an imposter!! The moldy headed woman I know could never write such a brief note or post.

In any case, I like the note. I personally would be going completely balistic if she confirms telling him to sit under the table for anything besides a emergency drill (or true emergency of course).
I would follow up with the brick in purse as Supermama suggested for the 5th graders don't cry comment if that is true. Is she trying to ruin his entire life?
My third and last comment... I really don't want teachers hugging my child. I think its something I would talk to him about at some point... just my thing though. Never give a pervert an opening, and though the teacher may not be... its just prep for a perv.