The Leopard Shark, Stegostoma fasciatus, reportedly eats small fish and molluscs. Molluscs probably make up the bulk of its diet. I can't imagine how it could catch a fish as this is one very lethargic creature. Freddy, who was watching me take this image, said it looked like a big log lying on the bottom until the shark decided my camera housing was intruding on its personal space (about 50cm from its nose) and it very slowly swam off with a small remora suckered onto its back. Possibly it feeds at night when many fish are asleep. Only a really sleepy fish could be caught by a leopard shark.
One look at the photo will tell you why this shark (a little under 2-metres long) is named after a Leopard, but when it is a juvenile it has vertical black and white stripes until it is about 0.4 metres long and is called a Zebra Shark. They are normally found in the lagoon on sandy bottoms from 4 to 30 metres deep. They have probably never even contemplated biting a human although I think if you grabbed it by the tail it might be frightened enough to try. This one was in the Ilot Mato Anchorage in New Caledonia's southern lagoon, part of the New Caledonia Lagoon World Heritage Site .