"Where on Oahu have you been having shark problems?"
See the first page of this forum posting.
Also I might add............
There have been several shark sightings since the previous attack at Leftovers.
Ehukai beach, Rocky point 2 days ago, Sunset and Back Yards (yesterday).
Sharks come from all over the pacific to the Northern Hawaiian Island atols every spring to eat the fledgling birds that are trying to learn to fly.
It stands to reason that some will pass through the rest of the islands.
Also Hammerheads school (for mating?) out at Mokuleia at this time of year. Packs of several hunderd have been seen over the years.
I once surfed one of the best breaks there going off at 8-10" with one other guy on a Saturday.
As I drove out that way I noticed a lot of cars with boards on top headed away from the area.
When I paddled out there was only one guy.
I asked him why everyone left.
He'd only just arrived himself and didn't know.
We had a great time.
That night the local news broadcasted footage taken from a helicopter that showed a MASSIVE school of the beasts just a mile from where we surfed.

(We did notice the low flying heli down the coast during our session)
Apparently the crew in the heli had earlier, allerted the surfers in the area.
Mokuleia is largely less crowded due to it being onshore more often than not. Good days out that way are less frequent.
It does get crowded, but it is still possible to score it minus a lot of people if you get there first when the conditions change to it's favor.