I used to get caught vandalising my own textbook when I was in school. Didn't get away with it as I wasn't paying attention to the least favourite period of the day. My teachers were 'offended' that I paid more attention to daydreaming and the doodles in my textbooks instead of their lessons.
Fast forward to now, in the midst of the stressful 'adult' decision-making sessions, I daydream my way into my doodles again.
But this time, no one was offended.