What made Abhishek Bachchan angry at Zee Cine Awards?

Actor Abhishek Bachchan, who is usually known for his calm and cool demeanour, was spotted in a rather furious mood at the Zee Cine Awards. Abhishek, the host for the evening, was seen at the the red carpet along with co-host Riteish Deshmukh. While Riteish was all happy-go-lucky, junior B looked far from his genial self. At one point the actor even appeared to be warning the photographers not to click any pictures, while Riteish tried to pacify him. We wonder, what caused Aby's Baby to lose his cool.