Trivia: When Father Ted sees actor Richard Wilson from the hit TV series "One Foot In The Grave", Father Ted goes up behind Richard and says "I don't believe it." causing Richard to attack him. Richard Wilson has admitted that he really does hate when people come up to him and says his character's well known phrase.
Trivia: In the scene where Mrs. Doyle is telling Ted about the profanity in the book, several of the swears were not in the original script but were introduced by Pauline McLynn during filming. You can see Dermot Morgan trying not to laugh at her last line "Ride me sideways", which he hadn't been expecting.