When we are warned about the dangers of food, it usually relates to food allergies or food poisoning. The image of killer biscuits has never quite come in to people's minds. Millions of people reach for a 'biccy' whenever they pour a cup of tea and it seems that this simple action is an activity packed with hidden danger.

And it's estimated that millions of Brits have become cookie casualties at some point. It also found that almost a third of adults said they had been splashed or scalded by hot drinks while dunking or trying to fish out the remnants of a collapsed digestive. It also revealed that 28 percent had choked on crumbs, while one in ten had broken a tooth or filling biting a biscuit.

More unusually, three percent had poked themselves in the eye with a biscuit and seven percent bitten by a pet or other wild animal trying to get their biscuit. One man even ended up stuck in wet concrete after wading in to pick up a stray biscuit. And the title of the most dangerous biscuit belongs to the humble custard cream. It poses the most risk to innocent dunkers with a Biscuit Injury Threat Evaluation, or B.I.T.E rating of 5.63. This compares to just 1.16 for soft and safe Jaffa Cakes.