A YouTube video shows a man in the Indian city of Shimla discovering what happens what when you flip off a monkey.
The city is famous for the Jaku Temple and home to several monkeys which are considered sacred in the Hindu religion.
In the video, a man is seen walking by one of the monkeys and flipping it off.
The monkey quickly retaliates with a swift drop kick that floors the young man.
Lesson learned: Don't mess with the monkeys.