I Don't Know If I Should Have...

Today in my History class, a few of my friends and I were very disruptive during a video about the Korean War. My teacher had asked us to stay quiet and pay attention to the video, or else she'd turn it off and make us do an assignment. But the video, the same one from the day before, was playing the same exact thing we saw the other day, so we were watching the same thing we already saw. I paid attention to the video somewhat, but my mind also strayed a bit because I wasn't interested in a recap of a slightly boring video. So my friends and I were laughing about some of the things, unnoticeable to most in the class, but we were laughing a little too loudly, so we were disrupting the class. Now, I understand I was wrong, and that we deserved to get that assignment that she gave to us, so I wasn't really complaining about it when she shut off the video. She said that we had to write a two page journal entry about what we thought respect meant, but then she changed it to what respect in the classroom meant. So I did the assignment without much complaint, however, at the end of said assignment, I wrote what I thought about that class. I said some pretty harsh things, and before I did, I asked Bonvincent, a classmate of mine, should I write it and he said no. I agreed with him, but when I started to write a finishing paragraph, I wrote my opinions about the class instead. I know that I shouldn't have and some things really are supposed to be left unsaid, but I couldn't help it and I thought, in the back of my mind, that it needed to be said. Was I wrong to write negative things about the class or should I have kept it to myself, but still think those things in my mind and never say them? I'm torn right now because I know that receiving such negative things about how you are running a class is hurtful, especially if you have been teaching for such a long time, but I also know that if you have opinionated students, you should expect criticism. And I did say criticism, not constructive criticism, there is a large difference in those two things.