The ISAN production code was 269324-39.
Kindry tells D'avin to "take that hair shirt off". For thousands of years penitent religious groups have punished their own bodies as a sign of godly devotion. A hairshirt made from very coarse fibers or animal hair would be very uncomfortable. Today "putting on a hairshirt" implies more a show-offy ostentatious display than a true act of devotion.