By Sandra Gonzalez
October 15, 2010 at 02:00 PM EDT

Image Credit: Everett CollectionJackass 3D comes out this weekend, which means that mothers of teenage boys should stay on high alert for at least 48 hours after their children return from the movie theater this weekend. (You and I both know that they won’t actually watch Secretariat after you drop them off.)

After all, we’ve seen teens behaving badly before: After the first Jackass movie was released, one of my friends bragged about how he recreated the grocery cart stunt with his friends. (The geniuses piled into a grocery cart and rolled down a hill.) I don’t recall seeing any  blood or injuries on him, but he was a hairy kid so I always assumed they were all hidden. Nonetheless, I remember being glad he and his bonehead friends chose shopping carts instead of attempting something worse. (As we know, recreating stupid scenes from movies can end poorly, people.)

I don’t mean to rib on teenagers — but they are among the worst offenders. This really goes to everyone: Don’t try this stuff at home. And I’m not just talking about obvious bad ideas.

A lesser known risk: Movie scenes that don’t look dangerous, but cause damage nonetheless, like destruction of property. (Anyone else know a carpet that has quarters glued to it because someone who just saw Empire Records thought it was funny?)  Even worse, you might experience terrible embarrassment. Just ask the person I know who tried animal cracker foreplay à la Armageddon. You don’t want me to elaborate.

We all have our skeletons, PopWatchers. So share your knowledge as a cautionary tale to others, and tell me: What bad ideas have you gotten from movies?

More confessions on Twitter: @EWSandraG