So the documentary-makers stick with sharks.  Generally, their procedure is
to scatter bleeding fish pieces around their boat, so as to infest the
waters.  I would estimate that the primary food source of sharks today is
bleeding fish pieces scattered by people making documentaries.  Once the
sharks arrive, they are generally fairly listless.  The general shark attitude
seems to be: "Oh God, another documentary."  So the divers have to somehow
goad them into attacking, under the guise of Scientific Research.  "We know
very little about the effect of electricity on sharks," the narrator will
say, in a deeply scientific voice.  "That is why Todd is going to jab this
Great White in the testicles with a cattle prod."  The divers keep this kind
of thing up until the shark finally gets irritated and snaps at them, and
then they act as though this was a totally unexpected and very dangerous
development, although clearly it is what they wanted all along.
		-- Dave Barry