Some people dream of changing the world. Others are perfectly content making someone else's afternoon just a little more confusing.

Whether it's an unnecessary prank, an act of spectacular pettiness or a joke that exists solely to inconvenience another person, these harmless moments of mischief have become some of the internet's favorite forms of comedy.

It also takes a surprising amount of creativity to come up with some of these ideas. Anyone can play a practical joke, but creating the perfect minor inconvenience requires timing, planning and just enough commitment to the bit.

The best examples leave their victims momentarily confused before they realize they've been outsmarted by someone embracing their inner supervillain.

There's a big difference between harmless chaos and genuine cruelty. The funniest examples are the ones where everyone can laugh afterward, even if the victim needs a minute to recover from the sheer pettiness of it all.

Whether the culprit is a mischievous friend, a chaotic family member, a clever coworker or a complete stranger with too much free time, these moments capture a side of human nature that's impossible to dislike for long. They remind us that a little harmless chaos can make an ordinary day far more memorable.

So, if you've ever hidden the TV remote, swapped someone's desktop wallpaper or laughed at a perfectly harmless prank, you'll probably appreciate the wonderfully petty energy behind these 20 tiny acts of evil.

Just be careful. You might get inspired.