If you're going to mess about on the bottom of the ocean feeding sharks, you'd better be prepared for a bit of rough-and-tumble.

That’s the lesson that a group of divers off the Bahamas' Bimini atoll discovered in January this year when they were feeding and filming a medium-sized hammerhead.

The shark began circling the divers before lunging at one of them.

But the experienced diver was able to push the ocean predator away by grabbing onto its head.

As hard as the shark tries, it just can't get close enough to the tasty rubber-suited human to take a chunk out of him, and the diver seems to know it.

There are three species of hammerheads that are considered dangerous to humans.

However, there have been no fatalities among 33 recorded attacks by the sharks.

Their fins are prized by fisherman for the Chinese market, where they are used in shark fin soup.