Sighting: David Foster Wallace's Roll Call

Adam Plunkett's N+1 memoir and appreciation of David Foster Wallace as a teacher features this Nabokov-minded bit:

It took a student a few seconds to answer when called on “Joseph Reynolds, light of my life, fire of my loins” (name changed to protect privacy). My own soft underbelly was spoken (if not written) politeness, a Midwestern habit of deference and sorrys and if-you-don’t-minds my Midwestern teacher invariably mentioned or mocked or prodded in a mild recursive torment, recursive because politeness tends to be polite about itself.