Chotu is not happy to see visitors. He is busy scratching himself and intensely surveying his surroundings when he's approached. He and his buddies Pinki and Mangu are in the middle of their eight-hour shifts. They have important jobs to do. They are some of more than 100,000 security forces protecting people during the Commonwealth Games in New Delhi. But Chotu and his gang are a special force trained to put a stop to any monkeying around near the stadiums. Chotu, Pinki and Mangu are langur monkeys. Their trainers said each one has the ability to scare off 50 potential attackers -- namely the wild smaller macaque monkeys that roam the streets and buildings of Delhi.