Silver: How about one last challenge? One we can do together?
Gold: Sure, that sounds fun!
Silver: Okay, slave, stroke for me 15 times as fast as you can.
Gold: And after 15 strokes, smack your balls 5 times as hard as you can.
Silver: Keep doing this until you edge, as quickly as you can.
Gold: And don't forget to count how many repetitions it takes you to edge!