|16. Don't you just throw Rock, Paper Scissors once to decide something?|
Some indeed do, they are commonly referred to as lightning throws and are used in pedestrian situations where time is an issue. However, all World RPS matches consist of a minimum "best of 3" round, and three rounds per game. Some games have gone so far as to play "best of 105", but the current President of the World RPS Society refers to these marathon-style matches as "silly, demeaning to the sport and frankly boring".