Here's one that my in-laws like to tell...
When my husband, Wade, was a very small boy, maybe 4 years old, he was given a carpenter's set of tools for Christmas. This was back in 1970 or so, and the tools were real. Everyone was laughing and talking and visiting, until my MIL thought she heard a weird noise. She shushed everyone, but the noise had stopped, so they went back to their conversations. After a bit, the weird noise started again, and she shushed everyone again, but the noise stopped before they could figure out what it was. This happened a couple more times. Then, all at once, to EVERYONE'S surprise, the Christmas tree suddenly fell over! Sitting in the corner behind the tree with his carpenter's saw in hand was Wade. He had sawed the tree down.
What else would you expect a boy to do with his brand-new saw???