ㄅㄢㄑㄧˇbānqǐˊㄊㄡ˙shítouㄗㄚˊˋㄐㄧˇzìjǐㄉㄜ˙deㄐㄧㄠˇjiǎo

搬起石头砸自己的脚
  1. 比喻自找苦頭弄巧成拙 搬起石頭砸自己的腳千萬不要」。

to crush one's own foot while trying to maneuver a rock (to a cliff edge, to drop on one's enemy)​ (idiom)​, hoisted by one's own petard
sich ins eigene Fleisch schneiden (S)​