Some stories leave you wondering how an ordinary morning can turn into something unthinkable. And for one couple in Haverfordwest, a simple carton of milk set off a chain of events that changed everything.

According to Swansea Crown Court, 32-year-old Melissa Eynon flew into a sudden rage after discovering the last of the milk was gone. Her boyfriend had used it while making cereal—and while preparing her morning tea. The couple had been together only six months, a relationship both later admitted was tense and unpredictable.

What happened next shocked even seasoned investigators.

Prosecutors say Eynon grabbed a kitchen knife and moved toward her partner. He raised his hands to protect himself, but the blade struck him twice—once in the hand and once in the forearm. The second blow was so deep the knife became lodged in his arm.

As he pulled the blade free, he was bleeding heavily.
One detail from the courtroom silenced the room: she “smirked,” the prosecutor said.
That moment marked the turning point in the case.

The boyfriend didn’t seek medical help immediately. He was worried about what might happen to Eynon’s young daughter if he reported the attack. Instead, he went to a shop for bandages… and even bought more milk before returning home to try to calm her down.

Three days later, he finally went to the police. Officers arriving at the home noticed the strong smell of bleach, a freshly scrubbed kitchen floor, and bloodstained pajamas.

Eynon denied stabbing him, claiming she was “cutting bagels.” But she later pleaded guilty to unlawful wounding. The judge acknowledged the couple’s toxic relationship but warned, “If we all took knives to our partners for drinking too much milk, the world would be in a sorry state.”

Eynon received a suspended sentence, community service, and required rehabilitation—an ending that left both families shaken and grateful the situation didn’t end even worse.