Your driving to a bowling alley with your nine year old daughter and one of her friends and she says we will bet you our total score against your own score for $10. I say OK, no rails. They come back with rails, we give you 20 pins and it is for only $6. I guess that makes my daughter the degenerate gambler. Results were Dad wins two games and girls win two games, WASH, but it did make for alot of fun at the alley. Plus, they want a rematch.