In the sport of ferret legging, competitors tie their trousers at the ankles before placing two ferrets inside and securely fastening their belts to prevent the ferrets from escaping. Each competitor then stands in front of the judges for as long as he can. Competitors cannot be drunk or drugged, nor can the ferrets be sedated. In addition, competitors are not allowed underwear beneath their trousers, which must allow the ferrets free access from one leg to the other, and the ferrets must have a full set of teeth that must not have been filed or otherwise blunted. The winner is the person who lasts the longest.
The sport is said to involve very little "native skill", simply an ability to "have your tool bitten and not care". The current world champion, Reg Mellor, is credited with instituting the practice of wearing white trousers in ferret legging matches, to better display the blood from the wounds caused by the animals. Competitors can attempt, from outside their trousers, to dislodge the ferrets, but as the animals can maintain a strong hold for long periods, their removal can be difficult.