How is wander received by his new army, rat?

Ender arrives at the disorderly Rat barracks. Rose de Nose is Jewish, and due to a superstition that Jewish generals never lose wars, Rose has an attitude. Rose's only three rules are "Do what I tell you and don't piss in the bed." The third rule is implied: winning each game is the most important thing. Rose encourages him by ordering him not to practice with his Launchie group or use his desk until he has frozen two enemy soldiers in the same battle. Again, Ender's reputation has preceded him; Dink Meeker chose him for Dink's toon in Rose's army. Dink tells Ender to ignore Rose's orders; his toon works independently of Rose's commands anyway.