This behaviour is well known as "accidental trolling"
I really hate beach bullies
You either have it, or you don't..
After this incident the poor dog bullied by kittens
This sailor leans a little too far forward on the boat...
Creepy encounter with a real monster
How to get Hulk's hands in just a few seconds
Golakeeper fail or win? (Clarification: football=soccer)
It's painful to be a parent
The guy in front gets smashed while the following rider enjoys the view
A rather unusual (and trigger happy) way to reveal baby's gender.