《论衡·卷十·刺孟篇》
一个人无缘无故地毁坏屋瓦、割开车盖，这人不是傻子、疯子，就是闹着玩的。
夫人无故毁瓦画墁，此不痴狂则遨戏也。
When a person destroys roof tiles and tears open carriage covers without reason, that person is not an idiot or a madman, he is just messing around.