When Mac gets sugar, he transforms from his usual sweet and responsible self into an energetic whirlwind of chaos. His wide eyes seem to sparkle with an almost maniacal gleam, and he can't stop talking—his words tumble out at lightning speed, making him hard to understand. His movements become erratic and hyperactive; he's bouncing off walls, running in circles, and performing acrobatics you didn’t think were possible. Mac's normally composed demeanor is replaced with a manic enthusiasm.