A man is airlifted to hospital after suffering a serious injury to his arm on Aberdyfi beach in North Wales. Multiple reports say the incident happens when the man uses a knife to open a beer and slips or cuts himself during the attempt. Witnesses and members of the public help while waiting for emergency services, including trying to stem the bleeding. The injury is described as deep and potentially life-threatening, with some accounts suggesting a serious arterial bleed. Emergency response includes an RNLI rapid response, with reports stating that a helicopter or airlift is used to transport the man to hospital for treatment. The incident draws attention to the rapid deterioration possible from significant bleeding and the need for immediate first aid and medical care. Details on the man’s name, age, and current condition are not provided in the supplied reports, and no motive beyond the attempt to open the beer is reported.