Taking pity on you Sylvia.
There's a film Fatal Attraction, in which the married man played by Michael Douglas has a supposedly one-night stand with an attractive woman, played by the inestimable Glenn Close. She, however, isn't satisfied with the casual one-nighter and tries to turn it into something a lot more. He resists, actually being a happily married family man whose family was out of town at the time, so she stalks him.
Anyone who hasn't seen the film and wants to, stop reading now.
Anyone under the age of 16, and/or who has a big soft spot for bunny rabbits, stop reading now.
The bit most people remember and talk about is where she's broken into the family home, and leaves the child's pet rabbit in a pot simmering on the stove.
Hence, unhinged predatory women have ever thereafter been known as 'bunny boilers'.