No esperes peras de un olmo.

Once upon a time, a woman was picking up firewood. She came upon a poisonous snake frozen in the snow. She took the snake home and nursed it back to health. One day the snake bit her on the cheek. As she lay dying, she asked the snake, "Why have you done this to me?" And the snake answered, "Look, bitch, you knew I was a snake."

Natural Born Killers

Érase una vez, una mujer recogía leña. Se topó con una serpiente venenosa congelada en la nieve. Ella se llevó la serpiente y la curo hasta que sanó. Un día, la serpiente la mordió en la mejilla. Mientras agonizaba, preguntó a la serpiente, "¿Por qué me has hecho esto a mí?" Y la serpiente respondió: "Mira, puta, sabías que yo era una serpiente."