Mob's attitude seems to change once he hears what Dimple says. Mob ends up apologizing to Dimple because he had gotten carried away from the thought of being popular and didn't hear what Dimple had to tell him before.
Why were you wearing that 
under your uniform?
لماذا كنت ترتدي هذا تحت زيّك؟
Warum hast du das
unter deiner Uniform?
E perché ce l'avevi sotto la divisa scolastica?
Por que está usando isso 
embaixo do uniforme?
Ты зачем это под форму напялил?!