G: I have a pet rock.  

H: What’s its name?  

G: Plop.

H: It talks too! May I meet it?  

G: I'm afraid not.

H: Why?  

G: It fell into the water.

其实，当时橙问我，石头掉到水里，“咚”，英文怎么说。我想到钟声英文说"dong"，就回答"dong"。后来查了，"dong"是钟声专用。