At the end of the episode Howard shows Andy that his left thumb is bandaged and tells Andy he can't bowl because it's become infected. Howard is right-handed.
Actor Burt Mustin is listed in the ending credits as playing the roll "Jud," but Andy repeatedly refers to him as "Burt" and when Aunt Bee is practicing with them at the Taylor home, she replies "Burt Wilkins, I am not squeaky."