The boys entertained themselves with several games of Mau. You must deduce the rules of the game as you play with the goal of discarding all your cards to win. The Mau (Nico in this case) issues cards to players when they fail to observe a rule (initially known only to him) correctly and thus the game is learned. I have yet to witness a harmonious outcome to this game nor have I ever failed to find myself rolling on the floor laughing at the antics.