Early in the year, you can normally see pretty quickly which students are going to be what we normally call "good students" or "problem students"... or entire classes. A little secret about teachers, we smile and we cringe when we see certain students on our class list. We're human, after all. I normally like the students that other teachers would call problem students because I've found that they're the ones that make the memories. When I tell stories of things that happened in the classroom, I don't tell the story of when Nora and Alejandra did a well-prepared presentation on Passive Tense, or when Pablo did a surprisingly prepared presentation on Have Something Done.
Instead, I normally tell stories like when I sent Paula out to make copies of a worksheet for a couple students and she didn't come back. I went out to look for her only to find her sitting in the staff kitchen talking to her friend, eating cake. Those kinds of stories drive you crazy, but which ones make more of an impression on you? I've learned, through experience (and a little stress and aggravation), to realize that kids will be kids, teens will be teens, even adult students will be students. I've also learned to not take these episodes so personally. If an adult student wants to chat on a mobile phone during the class, to let them be them. Yes, it's very rude, and a bit distracting for me, but I just focus on the other students who are paying attention.
These are what we can call 'earning your stripes'. Dealing with difficult situations in a job, or hobby, that we just have to learn from for next time. If you're a student (of anything) reading this, understand that teachers are only human like you. We're going to make mistakes. We're going to get distracted. And we're going to lose our temper sometimes. If you're a teacher reading this, understand that students are only human. They're going to make mistakes. They're going to get distracted. And they're going to push you as far as they can. Keep control of yourself, and it'll be easier to keep control of the class. We're all only human trying to learn together.