a swan goose falls into a fish net—fall victim (/suffer injury) for no reason ❍ 鱼网之设，鸿则离之。燕婉之求，得此戚施。(《诗经·邶风·新台》) It was a fish net that was set,| And a swan goose has fallen into it.| A pleasant,genial mate she sought,|And she has got this hunchback.