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第1段
1 .<-NARRATOR:-> Now listen to part of a lecture on this topic in a psychology class.
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第2段
1 .<-MALE PROFESSOR:-> Think about when you were a kid...
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2 .Imagine you like this one playground.
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3 .You play there a lot, have lots of fun, you know.
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4 .OK. Now imagine that one day, for no apparent reason,
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5 .your parents decide that they don't want you playing there anymore.
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6 .You're not allowed to go there anymore.
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7 .Of course, you're not gonna like that one bit.
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8 .It's not fair!
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9 .And now that you're not allowed, you want to play there even more than before.
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10 .So you sneak over there anyway.
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11 .You go to this playground despite your parents' rules.
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12 .Here's another example.
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13 .There was a town that passed a law that banned the sale of a certain kind of soap.
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14 .There was an ingredient in this soap that was harmful for the environment,
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15 .so stores weren't allowed to sell the soap anymore.
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16 .Keep in mind that this ingredient had no effect whatsoever on this soap's ability to clean things. None.
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17 .But, people found out about the upcoming restriction and got upset.
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18 .They thought they should be able to buy whatever soap they wanted!
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19 .It wasn't right to take this soap away.
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20 .And a week before the law went into effect,
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21 .what happened? People went and bought a whole lot of this particular soap.
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22 .Way more than they would have in another circumstance.
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