The purpose of this paper is to examine how the violent mechanism of mankind in J. Spinelli`s Wringer unfolds and develops, and what influence on children`s abnormal growth the evil-pretending violence can make. In Wringer a group of men in a `peaceful` country village who appear to be very `normal and moral seemingly` commit bloodcurdling and violent behaviors by shooting the flock of pigeons competitively which have been captured in a big cage under the name of `Pigeon Day`, a traditional festival. Protagonist Palmer, nine-year old boy, takes part in wringing the necks of `not-yet-dead` pigeons in order to become a brave wringer through his peers` incessant pressure. In this context the behavior of wringer can be regarded as even more `brutal than lion that tends not to kill the defeated enemy`. Because violence and power are twins, and power contains an intrinsic impulse to grow up, power is creative. In this respect, if men`s power pursuit can be thought of as a desire to dominate others, the powerful and violent behavior toward weak pigeons in Wringer can be considered as power impulse in a literal sense. But this cannot be justified or beautified as a `life-promotion function` or `an intrinsic impulse to grow up` from the concept that K. Lorenz has found in animal system, because violent behavior to shoot and kill the innocent pigeons is no more than a result of thoughtless play-instinct of men, and so it is not only far from the revolutionary cause to overthrow an unfair and unreasonable government. but also does not seem to be related to `creative madness` which Fanon, one of violence admirers, referred to who advocate the mechanism of destruction and creation in nature positively. At the end of Wringer, the scene in Palmer`s dream that millions of pigeon "pinched the edges of the town, plucked it up and flew away with it in their beaks", appears to be a very problematic. This suggests that any form of evil-pretending violence can not be justified or embellished despite plausible pretexts for play-instinct or power-pursuit desire of mankind.