I'm a secondary teacher and have recently noticed a few pupils mocking my accent (I teach in England and am from elsewhere) and imitating my mannerisms both behind my back and right under my nose. It really infruiates me as I find iit highly disrespectful and quite offensive. I am unsure how to deal with it as I don't want to provke more mocking. It's embarrassing to say the least as I am only trying to do my best but these incidents are making me paranoid and are therefore hindering my relationships with classes which in turn, has a negative impact on my teaching. I would really appreciate any advice on this. Thank you.