Once, in Hunan in mainland China, locals told him about a kind of frog that could pretend to be dead to draw in birds, and then turn around and eat the birds. They claimed that this was the origin of the expression, "A toad trying to eat a swan," which is usually used to describe a man trying to woo a woman who is "out of his league."
曾經，在大陸湖南，有人告訴他當地有一種會裝死誘鳥、再反過來吃掉鳥兒的棘胸蛙，「癩蛤蟆想吃天鵝肉」的說法是有來源的。