There are childhood pranks that fade with time, and then there are the ones that accidentally kick off a lifelong saga.
For one fourth grader, the moment came on a Friday the 13th, when a buddy lunged across the classroom, ruffled his hair into absolute chaos, and shouted “la machine!” with the confidence of a cartoon villain.
The boy blinked at him, confused, only to hear his friend explain that he had no choice. It was Friday the 13th. Rules were rules, apparently.
The funny thing was, he wasn’t even angry. But somewhere between smoothing down his hair and watching his friend cackle, he made a quiet decision. If Friday the 13th demanded chaos, then chaos would be returned. Every time. Forever.

Here is how that tiny classroom moment turned into a running joke that has survived nearly half a century.








The Long Game Begins
The two boys grew up, moved states apart, and started their adult lives. But the promise never died. Whenever Friday the 13th rolled around, he found a way to strike.
This wasn’t revenge fueled by bitterness. It was mischief fueled by loyalty, by nostalgia, by the kind of friendship that survives marriages, moves, and the slow drift of adulthood.
For years he found helpers who were more than willing to participate. Sometimes it was the friend’s wife. Sometimes a coworker. Sometimes a sibling. Occasionally it was a stranger who didn’t know either of them but was delighted to be part of the chaos.
By the time they hit their fifties, the tradition had become legendary. Both men were 52 now, with grown-up lives and responsibilities. Yet every Friday the 13th, somewhere in America, an unsuspecting accomplice reached out and gleefully fluffed up this man’s hair while declaring, “la machine says hi.”
And on the few unlucky years where the mastermind missed the date, his old friend would brag about his victory while also admitting he spent the whole day glancing over his shoulder.
The Dinner Party Incident
The greatest strike came during a year when the two lived far apart and communication was sparse. He wanted to hit his friend with something memorable. Something worthy of the decades-long tradition.
So he tracked down neighbors using county plat maps, googling names and phone numbers, calling them one by one with the enthusiasm of a man running an undercover operation.
Most thought he was hilarious. Several wished him luck. One of them casually mentioned that he would be seeing his friend later that evening at a dinner party.
Perfect.
Hours later, in the middle of a polite meal, between sips of wine and quiet conversation, the neighbor casually leaned over, messed up the man’s hair in full view of the table, and delivered the message.
“La machine says hi.”
The table reportedly froze. Then exploded into laughter. It was the kind of moment that becomes a family story, a legend retold at future dinners. And all of it because of a single mischievous moment in fourth grade.
Why This Petty Tradition Works So Well
This is petty revenge in its highest form. Not cruel. Not destructive. Just delightfully committed. It is the kind of running joke that carries the warmth of childhood into adulthood, turning a small prank into a thread that ties two lives together.
There is something timeless about it. A reminder that friendships don’t always survive because of heavy conversations or profound moments. Sometimes they survive because someone, somewhere, is still willing to mess up your hair on a random Friday.
And behind the humor, there is a hint of artistry. The creativity he brings to each new attempt. The elaborate planning. The joyful absurdity of recruiting strangers across the country. It is petty, yes, but it is also oddly heartwarming. A soft rebellion against the seriousness of growing up.
These are the responses from Reddit users:
People adored the story. Many called it wonderfully petty and wholesome.



Others joked about the paranoia his friend must feel every Friday the 13th, scanning every approaching human like they might be a “hairstyle hitman.”




Some said it belonged in a movie, comparing it to the film “Tag.”




Small rituals have a way of outlasting everything else. This one, born from a silly fourth grade prank, grew into a tradition spanning decades, states, marriages, and dinner parties.
It is revenge softened by affection, mischief wrapped in nostalgia, and commitment disguised as comedy.
And maybe that is the beauty of it. Life gets heavy. Responsibilities pile up. But on certain Fridays, chaos still gets its moment.









