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Grandma's Remark (illustration)
FILE No.126Unsolved

Grandma's Remark

Difficulty ★★☆about 5 minEveryday MysteryWordingPrevention
A candy-shop owner hadn't noticed any shoplifting, yet said, "Don't shoplift, now." Why?

Case Record

A candy shop with no security cameras. The owner, a grandmother, comes out to the register about 10 seconds after a customer enters. During that time a boy slipped a few sweets into his pocket, then bought something else.

At the register, the grandmother said to the boy, "You shouldn't shoplift, you know?" The boy nearly had a heart attack and burst into tears, apologizing. In fact, the grandmother had not seen the boy shoplift.

Your question

Why did she say this?

Case Files

Diagram

What happened in the shop (in order)The boy enters; grandma is at the backIn about 10 seconds he pockets some sweetsHe buys something elseGrandma: "Shoplifting is wrong, you know?"There is no camera. Grandma did not see the shoplifting.
Diagram

Hints

If you get stuck, open the hints one at a time, in order.

Open hint 1

Was the grandmother watching the shop?

Open hint 2

What effect does saying the same thing to everyone have?

Open hint 3

How does someone who did nothing wrong feel when they hear it?

Solve It

Your question

Why did she say this?

Choose the answer closest to the truth.

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The Truth

She did not know about the shoplifting, but said it to everyone to prevent it

The answer is "She did not know about the shoplifting, but said it to everyone to prevent it."

The grandmother did not see any shoplifting. Even so, if she says "don't shoplift," the one who did it confesses on his own, while those who did not just let it pass or say, "Tell the other kids too." It is a prevention measure that costs no money.

There is no camera, and it takes 10 seconds to come out to the register, so she cannot have been watching. There is no basis for her having remembered his face.

Why she said itShe saw nothing and does not knowShe says it to every customerA child who did it confessesAn innocent child just lets it passA free way to discourage shoplifting.
Diagram of the solution

Key Points

  • Words that draw out a reaction
  • You can check something you do not know by how you say it
  • Prevention does not have to cost money

Why people get fooled

Because you assume she said it because she had seen it.

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