三天不打,上房揭瓦 [ㄙㄢ ㄊㄧㄢ ㄅㄨˋ ㄉㄚˇ , ㄕㄤˋ ㄈㄤˊ ㄐㄧㄝ ㄨㄚˇ; san1 tian1 bu4 da3 , shang4 fang2 jie1 wa3] three days without a beating, and a child will scale the roof to rip the tiles (idiom) spare the rod, spoil the child ◄ ►