窮鼠嚙狸 [ㄑㄩㄥˊ ㄕㄨˇ ㄋㄧㄝˋ ㄌㄧˊ; qiong2 shu3 nie4 li2] a desperate rat will bite the fox (idiom); the smallest worm will turn being trodden on ◄ ►