Meaning:

If you are too interested in things you should not be interested in, you could be in danger. You may be causing yourself problems by trying to find out things you don't need to know.

Example:

Tom and Steve are walking down the street when they see a building that has been abandoned. There is wood over the windows and locks on the doors. There are weeds everywhere, and the garbage has been blown in by the wind. There is also a fence around the building to keep people out. The two boys hear a noise inside the building.

"I'm going to see what that noise is," says Tom.

"You'd better not," warns Steve, "Curiosity killed the cat, you know. It might be very dangerous. Let's just go home instead."

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