What three things do quail players and monkeys refer to respectively?

"Quail player, fast monkey" G officially means unfamiliar with breeding. In the old society, quails were used to tell fortune in the street, but quails could only be kept in cages, and they never dared to let them out and ran away as soon as they were released. There are still monkeys in the street now. Playing monkey never dares to loosen the rope around the monkey's neck. As soon as they let go, the monkey ran away An actor is an analogy between these two animals. All three are heartless things.