Our pal Asylum blog has a fantastic article about how some of the world's most bizarre riots got started. Like this one in New Delhi, India in 2007, that was caused by ... monkeys!
In New Delhi, where monkeys are a touch more revered and tolerated than they would be in most countries, rhesus macaques, numbering over 20,000 in the city, have a history of biting people. They've also been known to break into hospitals to pull out I.V. feeding tubes and drink the liquid themselves (because monkeys are diabolical like that). Somewhat more impressive is that the monkeys have a political agenda and actually killed the deputy mayor of New Delhi by pushing him off a balcony.
Unlike most riots, this one was fought the old-fashioned way, with more monkeys. Langurs, which are just bigger monkeys, have been brought into the city and strategically placed around important buildings to scare off the nuisance monkeys. Never has a more awesome solution to a problem been devised.
Check out the article here: 5 Unlikely Reason for Riots - Thanks Alex!