2 of my kids ages 5 and 15 passed out and had to be rushed to the hospital sat night. Dr said it was Carbon Monoxide from the boat exhaust. They were sitting on swimdeck while boat was running and i was putting stuff away getting ready to head back towards camp. They are both ok and home now but a very scary situation when you are holding your little boy in your arms and he is out of it. So please just keep reminded of the possibilty of this happening to your family and friends.