How gossip is conceived and what makes the world full of cheap talk

Student A: 請問今天有任何刁難的題目嗎? 有聽學妹說有人從五樓坐電梯下來在哭....
Professor B: 刁難? I doubt. 我家孔雀魚死了一隻，妳能質疑馬總統：為何台灣不能養孔雀魚嗎？
Student A: 聽不懂... !? 我理解能力有點差!
Professor B: I see. Let me post this mini series on FB. As time goes by, at least some readers will comprehend.

原因？
是文化嗎？是追求浪漫？
祖父挾菜給孫女，接著說：是不是爺爺挾的菜，特別香啊？！
我們成長的環境，罕見有人敢說：香與不香，與挾菜人應該無關。爺爺挾菜，是愛心表現，也可能沾到爺爺的唾液，就這樣喲。

後續發展報告：

Student A: 我只是很直接，想知道有什麼樣刁難的題目，想多學習。Sorry.

Professor B: What I care about is the logical reasoning.
1. When C sees the post made by A, C might wonder who that 學妹 was and whether A was telling the truth (and whether that 學妹 was telling the truth, ...).
2. 「刁鑽」是否是哭泣的充分條件？還是必要條件？
3. 試想：『xx學校面試 考生淚灑電梯』如果成為某白目報紙標題，對認真的師生與優秀考生，傷害有多大！