Have to agree with peter here. Last year as I descended head down from the boat, 3 nurse sharks were bumping my legs and no one else was in the water yet. I certainly had no chum for them. While I don't agree with the practice it has always gone on since long before either myself or Peter began to dive in Belize. It will take more education and divers expressing their wishes for the alternative. What really frosts me up is when I see divers that most certainly should know better chasing after the sharks and pulling their tails and such. Or even some complete lead heads that grab onto turtles.