You should never mess with a monkey. A teen learned it the hard way in Shimla, India a security cam shows the guy taunting the monkey first then gave the monkey the finger, in return the money drop kicks the guy to the head that knocked him down. The appears to be shaken, but seems to be doing okay.
Monkeys in Shimla are notorious for being hostile and aggressive. They are not pleasant at all and often causes problems to tourists and locals heading to Jakhoo temple, which is dedicated to the monkey god Hanuman.