I will go with the majority vote.
My Y8 DD has recently adopted a certain way of phrasing things which cubes across as down right rude. She really doesn't mean to be rude, but that's how she comes across. DH and I pull her up in it, to no avail.
She told be last night about a question she asked in a lesson; the way she asked did sound rude and the teacher pulled her up on it. DD replied "OK, sorry"
Now I know DD meant it in a dirty way, but that's not at all how it sounded, and again the teacher pulled her up on it.
Would it be weird to email the teacher to thank her for addressing DDs rudeness? I am genuinely grateful but maybe the teacher has already forgotten about it.