Here in California they class it as a type
of "Careless, reckless, or negligent operation" and as such is a citable offense, probably something similar in most states. The following is from a state safety course:Careless, reckless, or negligent operation It is also the responsibility of the operator to refrain from careless, reckless, or negligent operations on the water. Failure to operate a boat in a safe manner could endanger life, or property of other persons. Again, be courteous and exercise caution.Use common sense. If it doesn’t make sense to do something on land it probably doesn’t make sense to do it on the water. Would you ride on the hood of your car or hang out of the window when underway? Of course not, that wouldn’t be safe. So don’t allow passengers to ride or sit on the bow, stern or sides of the boat while underway. California Boating Regulations California law says no one may operate a boat, water skis, an aquaplane or other vessel in a way that will be dangerous to people and property. Dangerous examples include: Riding on the bow, gunwale or transom of a moving vessel when railings do not protect you. Riding your vessel over the towline of another vessel or its skiers. Steering your vessel between another towing vessel and the skiers or freight it’s towing. Boating while under the influence of drugs or alcohol. Boating around swimmers. Boating too fast in a crowded area, or in thick fog and heavy storms. Speeding in restricted areas, “buzzing” or “wetting down” others, or skiing when or where you’re not allowed. Just don't do it where there's someone to annoy you about it.