Playing tug-o-war across the street can be reckless and dangerous whenever cars are around.

But if you’re playing with a rope that doesn’t exist, it’s just funny.

This prank is just one of those classic ideas that you wish you came up with as a kid. All it takes is two people and a bit of acting to pull it off. What’s amazing is that most drivers come to a complete stop before realizing an invisible rope doesn’t exist.

WARNING: As harmless as this prank may seem, two kids in Connecticut were arrested for 2nd degree reckless endangerment after they caused a wreck with this very prank. If you plan on doing this, make sure you only attempt it where cars travel at slow speeds and there isn’t traffic.