Does anyone know what episode this Иконка is from?

I don't think that someone will answer it because it's really a small Иконка and this could be in any of the episodes, even in a few. Why don't U just watch S07 :) It's fantastic.

Why didn't Ты asked me?? I didn't notice the Вопрос before... sorry! ;P

7x18 "Dirty Girls"
School Scene