What happens if a rider does not comply with the back rule?

The correct answer highlights the importance of safety regulations in aquatic environments. When a rider does not comply with the back rule, which typically requires individuals to lie flat on their backs when using certain water attractions, there is a significant risk of injury. This position is designed to ensure that riders are properly positioned to maximize their safety while navigating the slides or rides. Being in the wrong position can lead to accidents such as falls, collisions, or improper landings, which can result in serious injuries.

While potential consequences like being asked to leave, receiving a warning, or being prohibited from sliding again might arise as a result of non-compliance, the immediate and most critical concern is the risk to the rider's safety and well-being. The emphasis on injury underscores the necessity of these rules for protecting both the individual and others using the facilities.