"People who live in glass houses shouldn't throw stones"

Click to see Vol. I, Issue 11 of the newsletter in which this article first appeared.

Proverb: People who live in glass houses shouldn't throw stones

• This is a picturesque way to talk about people criticizing others for a weakness they themselves share.

Meaning: Don't criticize others for doing something that you also do.

• For example, someone who drives badly shouldn't call another person a "bad driver" when he can be criticized for the same thing. He would be "throwing stones" at that person, even though, if someone "threw stones" at him in return, his fragile house--made of glass--would also be damaged.

Mini-Dialogue: A boy named Todd is sitting alone in the cafeteria. His friend Roland asks what's wrong.

Roland: Hey, Todd, what's up? Why are you all alone?
Todd: Oh, my friend Albert is a real jerk, so I quit hanging out with him.
Roland: What did he do?
Todd: Oh, he's always making fun of my clothes, and my hairstyle, and just my overall look.
Roland: Wow. He's not such a great dresser himself.
Todd: Exactly! My dad always says, "People who live in glass houses shouldn't throw stones."
Roland: That's right!

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QUESTION:

1. In which situation would you use the proverb, "People who live in glass houses shouldn't throw stones"? The correct answer is in the first comment below.
   A. Your friend's room is always clean, but she tells her brother that his is a mess.
   B. Your friend tells you not to talk so much, but he virtually never shuts up.
   C. Your friend quits his job, but only after he has found another one.