Not necessarily a joke, as it could potentially be dangerous, but something I can see my Dive buddies doing to me or to each other nonetheless.
Diver Stuck on Boat
Diver Stuck on Boat
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Those of you who get to dive in aquariums (like Atlanta aquarium of Epcot centre), swim to the edge of a viewing window then take your reg out, open your eyes really wide, leave your mouth open, hang your body limp, and "drift" upside down past the viewing pane.