We believe each person who chooses to enter where sharks with the ability and have been known to injure, kill or consume land animals (Humans in our case) could be present. You should have access to all the known information enabling you to try and make an educated decision if you should proceed into the water world or stay on land with your familiar surroundings.
When we enter the water we lose almost all the senses we have on land. We are really defenceless in the water, actually, when we enter the water we are the weakest thing in the water. Everything changes if you decide to enter the water.
This person does not have to worry about being injured or killed by vending machines, coconuts,