I have this same problem. My 8th grade English teacher replaced everyone's favorite teacher this year. So everyone gave her a hard time, but also note the fact that she will not take any rudeness and treats us like 3rd graders. We do daily journals and we read them out loud. Well on student decided to tell her in a very repectful manner that they were upset that their favorite teacher was replaced, and they told the story of their first day back to school. And simply stated that they would put up with this certain teacher for the rest of the year but didnt exactly appreciate the fact that their favorite teacher wasnt there anymore. This teacher got upset and said that it was rude. I have a feeling this teacher contacted this students parents because this teacher has done similar things before.