A daredevil from Cuckfield has performed a hair-raising backflip off of the world’s oldest iron bridge in Shropshire.br James Williams-Fuller, 32, said he performed the heart-pounding stunt into the River Severn at about 1pm on Sunday (November 28) after extensive safety checks.br “The actual trick is called a gainer,” said James, who described this as a forward movement with a backflip.br James’s stunt delighted some onlookers but has dismayed others.