By sparing the camel and not eating it, the king had spoilt the plan of the fox, vulture and the leopard. As they had similar interests, they had the same thought about the camel. The animals were all tired and hungry and realised that the camel would make a large meal. The camel being simple minded would not suspect this play and they could easily have a feast and satiate their hunger by fooling him. They were now irritated with their plans having been failed.