"Mr. Malfoy will have a guest with him today and for all future sessions. I thought it appropriate to prepare you. Given the... incident... last week, we determined it would be in his best interest that these sessions are supervised by an individual who can provide emergent care before assisting Mr. Malfoy to the hospital wing if necessary. Or, more favorably, an individual who can spot if Mr. Malfoy is in distress and end the session before any medical attention is needed."