Why it worked
The video uses a humorous and unexpected twist where the adult's attempt to steal fuel backfires dramatically, leading to a comedic and memorable outcome. The visual of the children outsmarting the adult and the adult's exaggerated reaction to drinking fuel likely contributed to its shareability.
Summary
Two children are riding dirt bikes on a road. An adult male appears and attempts to take fuel from one of the children's bikes, claiming he needs it for his own scooter. The children protest, and the adult then proceeds to drink the fuel, which causes him to experience severe stomach pain and collapse. The children then take the fuel back and put it into one of their dirt bikes.