A very severe person whose sole purpose is to hold the Eavesdropper (who is his master) by the ankles at the required height according to the way the wind is blowing. This is because much jabbering is carried away in the wind after we release it; if an Eavesdropper is at the required height he can catch the faint jabberings with his sensitive ears and his brain can convert them into blackmail.
Mental Health Doctor who has suffered a moral decline: "This poor patient has severe catalepsy"
Professional Eavesdropper: "Yes, he will do as my eavesholder, how much?"
Mental Health Doctor who has suffered a moral decline: "It's a she"