https://www.yahoo.com/news/kids-floating-trampoline-hit-boater-205659728.html
Apparently a regular trampoline in the backyard is not enough. Best to invent one that you can float out in the lake right in the path of a drunk boater.
One of things adults are reminded of at our sailing club is NEVER trust the motor boaters, as drinking while boating is common no matter how unethical.
Of course the commenters put all the blame on the drunk boater and few mentioned the lack of foward thinking concerning a floating trampoline