Tear Jerker / Cluedo

• In A Deadly Deal, Mrs. White's confession can tug the heartstrings. The corrupt investment broker was offering everyone else a chance to get their money back, but she didn't have anything else to invest. When she confronted the broker, he laughingly called her original investment a "piddling little amount" barely worth his time and she snapped.
  Mrs. White: Well, that "piddling little amount" was everything I had in the world, and I'd lost it all because of him, and all he could do was laugh! Well, he won't laugh again, I've seen to that.
• "A Traveller's Tale" is one of the few episodes where Ms. Scarlet doesn't come across as The Vamp, a spoiled thief, or a Rich Bitch, but acts more like a Wide-Eyed Idealist Uptown Girl. Consequently, it's sad seeing her genuinely fall for a lying Con Man who acts like an ethereal hippie, and makes her decision to kill him out of betrayal oddly sympathetic.
• Colonel Mustard looks absolutely crushed in "The Bolivian Connection" when Mrs. Peacock decides she can't marry him if neither of them have money and callously says that she's going to look for a richer husband without showing any concern for Mustard's feelings.
• Mrs. Peacock's sense of grief after her horse dies in an accident in "A Hunting We Will Go."
• Any of the few times where a relatively likable and blameless person is the victim, like P.C. Jones in "A Fête Worse than Death", George Biddle in "The Best Insurance", Marjorie Hunt in "The Hanged Man" or Candice Costello in "The Word, the Flesh, and the Devil."