The hobo refers to his so-called bum leg as a fracture of the "Patella Oblongata." This was a composite of the words "Patella" (kneecap) and "Medulla Oblongata," which is part of the brain, as everyone learned in Science class.
The hobo (Douglas Fowley) claimed that he injured his leg while working on the "CB & Q" railroad. The Chicago, Burlington and Quincy Railroad was a railroad that operated in the Midwestern United States.
The director of this episode was Richard Crenna, who played 'Luke McCoy' in The Real McCoys, 'Mike Talman' in Wait Until Dark, 'Captain Collins' in The Sand Pebbles, 'Col. Trautman' in the first three Rambo movies, as well as a host of other memorable roles.
Though the hobo (Douglas Fowley) is unnamed, Barney referred to him as "Weary Willie," a term used to describe a person as one who avoids or dislikes work.
The hobo (Douglas Fowley) receives a feast consisting of turkey (taken from Mrs. Pruitt), a ham (Mrs. Porter), fruit and vegetables (Mrs. Jason) and an apple pie (Aunt Bee).