“What are you doing in there, waxing your mustache?” Iggy yelled, pounding on the bathroom door.I yanked the door open and pushed him backward hard, making him stagger. “I don’t have a mustache, you idiot!” Iggy giggled and put his arms up to protect himself in case I punched him. “And you know what?” I added. “You don’t have one either. Well, maybe in a couple years. You can always hope.”I left him in the hallway, anxiously fingering his upper lip.”