I’ve taken PCB and had earlier taken Math, but I dropped it. Today, my first class was Biology, followed by Math and then Chemistry.
During the Math period, I usually go to the library to study and make good use of that time. Based on my previous experiences, the Math teacher often takes an extra 5-10 minutes at the end of class. So today, I figured the same would happen and stayed in the library a bit longer, planning to head to Chemistry in 10 minutes.
But today, the Math class ended on time, and the Chemistry teacher arrived right on schedule. I ended up being late by like 10 minutes and was scolded for it. The whole thing just made my mood worse and threw off my focus for the rest of the class.
I don’t know what exactly happened, but it felt like the teacher was frustrated over those 10 minutes. I know I should have been on time, but it still felt unfair to be scolded like that.
TL;DR: Assumed the Math class would run late, stayed in the library to study, ended up late to Chemistry, got scolded, and it messed up my mood for the day.