When my girlfriend started unwrapping a bar of chocolate during her lecture at university, I thought she was going to completely lose it. But she then said to me that during Corona time when we had to watch lectures at home, she always did that - so the chocolate was always next to her. The reason for this was that all of her siblings also had to homeschool and her parents were also in the home office - so stressful situations and confusion were already prevalent at home. Now back in university at the lectures she noticed that - because she hasn't been among so many people or with so many people in one room for such a long time - she couldn't concentrate that well at the beginning. In the meantime, the chocolate is also just lying on the desk...